161312482 has 8 divisors (see below), whose sum is σ = 242022636. Its totient is φ = 80638272.

The previous prime is 161312401. The next prime is 161312509. The reversal of 161312482 is 284213161.

It can be written as a sum of positive squares in 2 ways, for example, as 161061481 + 251001 = 12691^2 + 501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 161312482.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12798 + ... + 22054.

Almost surely, 2^161312482 is an apocalyptic number.

161312482 is a deficient number, since it is larger than the sum of its proper divisors (80710154).

161312482 is an equidigital number, since it uses as much as digits as its factorization.

161312482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17972.

The product of its digits is 2304, while the sum is 28.

The square root of 161312482 is about 12700.8850872685. The cubic root of 161312482 is about 544.3639095680.

The spelling of 161312482 in words is "one hundred sixty-one million, three hundred twelve thousand, four hundred eighty-two".