161329674 has 32 divisors (see below), whose sum is σ = 352659456. Its totient is φ = 48795120.

The previous prime is 161329667. The next prime is 161329681. The reversal of 161329674 is 476923161.

It is an interprime number because it is at equal distance from previous prime (161329667) and next prime (161329681).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38049 + ... + 42075.

It is an arithmetic number, because the mean of its divisors is an integer number (11020608).

Almost surely, 2^161329674 is an apocalyptic number.

161329674 is an abundant number, since it is smaller than the sum of its proper divisors (191329782).

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

161329674 is a wasteful number, since it uses less digits than its factorization.

161329674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650.

The product of its digits is 54432, while the sum is 39.

The square root of 161329674 is about 12701.5618724628. The cubic root of 161329674 is about 544.3832475464.

The spelling of 161329674 in words is "one hundred sixty-one million, three hundred twenty-nine thousand, six hundred seventy-four".