161019352 has 32 divisors (see below), whose sum is σ = 325770480. Its totient is φ = 74171520.

The previous prime is 161019349. The next prime is 161019361. The reversal of 161019352 is 253910161.

It is a self number, because there is not a number n which added to its sum of digits gives 161019352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66727 + ... + 69097.

Almost surely, 2^161019352 is an apocalyptic number.

It is an amenable number.

161019352 is an abundant number, since it is smaller than the sum of its proper divisors (164751128).

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

161019352 is a wasteful number, since it uses less digits than its factorization.

161019352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043 (or 3039 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 161019352 is about 12689.3400931648. The cubic root of 161019352 is about 544.0339781977.

The spelling of 161019352 in words is "one hundred sixty-one million, nineteen thousand, three hundred fifty-two".