161425152 has 108 divisors (see below), whose sum is σ = 531971440. Its totient is φ = 46116864.

The previous prime is 161425151. The next prime is 161425163. The reversal of 161425152 is 251524161.

161425152 is a `hidden beast` number, since 1 + 6 + 142 + 515 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161425151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11124 + ... + 21132.

Almost surely, 2^161425152 is an apocalyptic number.

161425152 is a gapful number since it is divisible by the number (12) 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 161425152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265985720).

161425152 is an abundant number, since it is smaller than the sum of its proper divisors (370546288).

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

161425152 is a wasteful number, since it uses less digits than its factorization.

161425152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10038 (or 10021 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 161425152 is about 12705.3198306851. The cubic root of 161425152 is about 544.4906185221.

Subtracting 161425152 from its reverse (251524161), we obtain a palindrome (90099009).

The spelling of 161425152 in words is "one hundred sixty-one million, four hundred twenty-five thousand, one hundred fifty-two".