161348544 has 112 divisors (see below), whose sum is σ = 542137600. Its totient is φ = 46096128.

The previous prime is 161348533. The next prime is 161348549. The reversal of 161348544 is 445843161.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 161348499 and 161348508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161348549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5427 + ... + 18765.

Almost surely, 2^161348544 is an apocalyptic number.

161348544 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 161348544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271068800).

161348544 is an abundant number, since it is smaller than the sum of its proper divisors (380789056).

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

161348544 is a wasteful number, since it uses less digits than its factorization.

161348544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13367 (or 13351 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 161348544 is about 12702.3046727749. The cubic root of 161348544 is about 544.4044713985.

The spelling of 161348544 in words is "one hundred sixty-one million, three hundred forty-eight thousand, five hundred forty-four".