161408051 has 8 divisors (see below), whose sum is σ = 185794560. Its totient is φ = 137353608.

The previous prime is 161408033. The next prime is 161408053. The reversal of 161408051 is 150804161.

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

It is a de Polignac number, because none of the positive numbers 2^k-161408051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161408051.

It is not an unprimeable number, because it can be changed into a prime (161408053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81971 + ... + 83916.

It is an arithmetic number, because the mean of its divisors is an integer number (23224320).

Almost surely, 2^161408051 is an apocalyptic number.

161408051 is a deficient number, since it is larger than the sum of its proper divisors (24386509).

161408051 is a wasteful number, since it uses less digits than its factorization.

161408051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166033.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 161408051 is about 12704.6468270472. The cubic root of 161408051 is about 544.4713904923.

The spelling of 161408051 in words is "one hundred sixty-one million, four hundred eight thousand, fifty-one".