161012124 has 240 divisors, whose sum is σ = 534274048. Its totient is φ = 41150592.

The previous prime is 161012101. The next prime is 161012129. The reversal of 161012124 is 421210161.

161012124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 161012097 and 161012106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161012129) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1267749 + ... + 1267875.

Almost surely, 2^161012124 is an apocalyptic number.

161012124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161012124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267137024).

161012124 is an abundant number, since it is smaller than the sum of its proper divisors (373261924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161012124 is a wasteful number, since it uses less digits than its factorization.

161012124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 161012124 is about 12689.0552839839. The cubic root of 161012124 is about 544.0258376929.

Adding to 161012124 its reverse (421210161), we get a palindrome (582222285).

It can be divided in two parts, 16101 and 2124, that added together give a square (18225 = 135²).

The spelling of 161012124 in words is "one hundred sixty-one million, twelve thousand, one hundred twenty-four".