23211249 has 16 divisors (see below), whose sum is σ = 31933440. Its totient is φ = 14989520.

The previous prime is 23211233. The next prime is 23211257. The reversal of 23211249 is 94211232.

It is not a de Polignac number, because 23211249 - 2⁴ = 23211233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23211229) 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, 11644 + ... + 13490.

It is an arithmetic number, because the mean of its divisors is an integer number (1995840).

Almost surely, 2^23211249 is an apocalyptic number.

It is an amenable number.

23211249 is a deficient number, since it is larger than the sum of its proper divisors (8722191).

23211249 is a wasteful number, since it uses less digits than its factorization.

23211249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980.

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

The square root of 23211249 is about 4817.8054132561. The cubic root of 23211249 is about 285.2547184152.

It can be divided in two parts, 2321 and 1249, that added together give a triangular number (3570 = T₈₄).

The spelling of 23211249 in words is "twenty-three million, two hundred eleven thousand, two hundred forty-nine".