161552748 has 48 divisors (see below), whose sum is σ = 431794944. Its totient is φ = 46052160.

The previous prime is 161552731. The next prime is 161552779. The reversal of 161552748 is 847255161.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39286 + ... + 43202.

It is an arithmetic number, because the mean of its divisors is an integer number (8995728).

Almost surely, 2^161552748 is an apocalyptic number.

It is an amenable number.

161552748 is an abundant number, since it is smaller than the sum of its proper divisors (270242196).

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

161552748 is a wasteful number, since it uses less digits than its factorization.

161552748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422 (or 4420 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 161552748 is about 12710.3402000104. The cubic root of 161552748 is about 544.6340421192.

The spelling of 161552748 in words is "one hundred sixty-one million, five hundred fifty-two thousand, seven hundred forty-eight".