16231641 has 16 divisors (see below), whose sum is σ = 22344000. Its totient is φ = 10473408.

The previous prime is 16231639. The next prime is 16231661. The reversal of 16231641 is 14613261.

It is not a de Polignac number, because 16231641 - 2¹ = 16231639 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16231601) 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, 38530 + ... + 38948.

It is an arithmetic number, because the mean of its divisors is an integer number (1396500).

Almost surely, 2^16231641 is an apocalyptic number.

It is an amenable number.

16231641 is a deficient number, since it is larger than the sum of its proper divisors (6112359).

16231641 is a wasteful number, since it uses less digits than its factorization.

16231641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808.

The product of its digits is 864, while the sum is 24.

The square root of 16231641 is about 4028.8510769201. The cubic root of 16231641 is about 253.1944273510.

The spelling of 16231641 in words is "sixteen million, two hundred thirty-one thousand, six hundred forty-one".