16241231 has 4 divisors (see below), whose sum is σ = 16308864. Its totient is φ = 16173600.

The previous prime is 16241227. The next prime is 16241233. The reversal of 16241231 is 13214261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16241231 - 2² = 16241227 is a prime.

It is a super-2 number, since 2×16241231² = 527555168790722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16241233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33455 + ... + 33936.

It is an arithmetic number, because the mean of its divisors is an integer number (4077216).

Almost surely, 2^16241231 is an apocalyptic number.

16241231 is a deficient number, since it is larger than the sum of its proper divisors (67633).

16241231 is an equidigital number, since it uses as much as digits as its factorization.

16241231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67632.

The product of its digits is 288, while the sum is 20.

The square root of 16241231 is about 4030.0410667883. The cubic root of 16241231 is about 253.2442817582.

Adding to 16241231 its reverse (13214261), we get a palindrome (29455492).

The spelling of 16241231 in words is "sixteen million, two hundred forty-one thousand, two hundred thirty-one".