23253131 has 32 divisors (see below), whose sum is σ = 28600320. Its totient is φ = 18662400.

The previous prime is 23253121. The next prime is 23253137. The reversal of 23253131 is 13135232.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23253131 is a prime.

It is a super-2 number, since 2×23253131² = 1081416202606322, which contains 22 as substring.

23253131 is a modest number, since divided by 3131 gives 2325 as remainder.

It is not an unprimeable number, because it can be changed into a prime (23253137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239675 + ... + 239771.

It is an arithmetic number, because the mean of its divisors is an integer number (893760).

Almost surely, 2^23253131 is an apocalyptic number.

23253131 is a deficient number, since it is larger than the sum of its proper divisors (5347189).

23253131 is a wasteful number, since it uses less digits than its factorization.

23253131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195.

The product of its digits is 540, while the sum is 20.

The square root of 23253131 is about 4822.1500391423. The cubic root of 23253131 is about 285.4261849834.

Adding to 23253131 its reverse (13135232), we get a palindrome (36388363).

The spelling of 23253131 in words is "twenty-three million, two hundred fifty-three thousand, one hundred thirty-one".