161001351 has 24 divisors (see below), whose sum is σ = 275626624. Its totient is φ = 91999800.

The previous prime is 161001299. The next prime is 161001353. The reversal of 161001351 is 153100161.

161001351 is a `hidden beast` number, since 1 + 610 + 0 + 1 + 3 + 51 = 666.

It is not a de Polignac number, because 161001351 - 2¹⁰ = 161000327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161001353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45625 + ... + 49026.

Almost surely, 2^161001351 is an apocalyptic number.

161001351 is a deficient number, since it is larger than the sum of its proper divisors (114625273).

161001351 is an frugal number, since it uses more digits than its factorization.

161001351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94673 (or 94661 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 161001351 is about 12688.6307771958. The cubic root of 161001351 is about 544.0137041945.

The spelling of 161001351 in words is "one hundred sixty-one million, one thousand, three hundred fifty-one".