16133961 has 16 divisors (see below), whose sum is σ = 22238208. Its totient is φ = 10396800.

The previous prime is 16133959. The next prime is 16133977. The reversal of 16133961 is 16933161.

It is not a de Polignac number, because 16133961 - 2¹ = 16133959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16133911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20821 + ... + 21581.

It is an arithmetic number, because the mean of its divisors is an integer number (1389888).

Almost surely, 2^16133961 is an apocalyptic number.

It is an amenable number.

16133961 is a deficient number, since it is larger than the sum of its proper divisors (6104247).

16133961 is a wasteful number, since it uses less digits than its factorization.

16133961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its digits is 2916, while the sum is 30.

The square root of 16133961 is about 4016.7102210640. The cubic root of 16133961 is about 252.6855075684.

The spelling of 16133961 in words is "sixteen million, one hundred thirty-three thousand, nine hundred sixty-one".