161392106 has 8 divisors (see below), whose sum is σ = 242153604. Its totient is φ = 80674240.

The previous prime is 161392097. The next prime is 161392139. The reversal of 161392106 is 601293161.

It can be written as a sum of positive squares in 2 ways, for example, as 161061481 + 330625 = 12691^2 + 575^2 .

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, 896 + ... + 17988.

Almost surely, 2^161392106 is an apocalyptic number.

161392106 is a deficient number, since it is larger than the sum of its proper divisors (80761498).

161392106 is a wasteful number, since it uses less digits than its factorization.

161392106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21816.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 161392106 is about 12704.0192852498. The cubic root of 161392106 is about 544.4534610227.

The spelling of 161392106 in words is "one hundred sixty-one million, three hundred ninety-two thousand, one hundred six".