161534355 has 16 divisors (see below), whose sum is σ = 259887264. Its totient is φ = 85674240.

The previous prime is 161534339. The next prime is 161534363. The reversal of 161534355 is 553435161.

It is not a de Polignac number, because 161534355 - 2⁴ = 161534339 is a prime.

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, 27034 + ... + 32463.

It is an arithmetic number, because the mean of its divisors is an integer number (16242954).

Almost surely, 2^161534355 is an apocalyptic number.

161534355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161534355 is a deficient number, since it is larger than the sum of its proper divisors (98352909).

161534355 is a wasteful number, since it uses less digits than its factorization.

161534355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59686.

The product of its digits is 27000, while the sum is 33.

The square root of 161534355 is about 12709.6166346590. The cubic root of 161534355 is about 544.6133722260.

The spelling of 161534355 in words is "one hundred sixty-one million, five hundred thirty-four thousand, three hundred fifty-five".