161255346 has 32 divisors (see below), whose sum is σ = 384611328. Its totient is φ = 44069520.

The previous prime is 161255317. The next prime is 161255351. The reversal of 161255346 is 643552161.

It is a super-2 number, since 2×161255346² = 52006573227159432, which contains 22 as substring.

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, 82500 + ... + 84431.

It is an arithmetic number, because the mean of its divisors is an integer number (12019104).

Almost surely, 2^161255346 is an apocalyptic number.

161255346 is an abundant number, since it is smaller than the sum of its proper divisors (223355982).

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

161255346 is a wasteful number, since it uses less digits than its factorization.

161255346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166966.

The product of its digits is 21600, while the sum is 33.

The square root of 161255346 is about 12698.6355960001. The cubic root of 161255346 is about 544.2996317374.

The spelling of 161255346 in words is "one hundred sixty-one million, two hundred fifty-five thousand, three hundred forty-six".