161513674 has 8 divisors (see below), whose sum is σ = 276880608. Its totient is φ = 69220140.

The previous prime is 161513663. The next prime is 161513701. The reversal of 161513674 is 476315161.

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

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, 5768332 + ... + 5768359.

It is an arithmetic number, because the mean of its divisors is an integer number (34610076).

Almost surely, 2^161513674 is an apocalyptic number.

161513674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161513674 is a deficient number, since it is larger than the sum of its proper divisors (115366934).

161513674 is a wasteful number, since it uses less digits than its factorization.

161513674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11536700.

The product of its digits is 15120, while the sum is 34.

The square root of 161513674 is about 12708.8030120858. The cubic root of 161513674 is about 544.5901292243.

The spelling of 161513674 in words is "one hundred sixty-one million, five hundred thirteen thousand, six hundred seventy-four".