161502465 has 32 divisors (see below), whose sum is σ = 277102080. Its totient is φ = 80031744.

The previous prime is 161502449. The next prime is 161502487. The reversal of 161502465 is 564205161.

It is not a de Polignac number, because 161502465 - 2⁴ = 161502449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16137 + ... + 24153.

It is an arithmetic number, because the mean of its divisors is an integer number (8659440).

Almost surely, 2^161502465 is an apocalyptic number.

161502465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161502465 is a deficient number, since it is larger than the sum of its proper divisors (115599615).

161502465 is a wasteful number, since it uses less digits than its factorization.

161502465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8121.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 161502465 is about 12708.3620108966. The cubic root of 161502465 is about 544.5775308030.

The spelling of 161502465 in words is "one hundred sixty-one million, five hundred two thousand, four hundred sixty-five".