23213153 has 2 divisors, whose sum is σ = 23213154. Its totient is φ = 23213152.

The previous prime is 23213149. The next prime is 23213161. The reversal of 23213153 is 35131232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22344529 + 868624 = 4727^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 23213153 - 2² = 23213149 is a prime.

It is not a weakly prime, because it can be changed into another prime (23213173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11606576 + 11606577.

It is an arithmetic number, because the mean of its divisors is an integer number (11606577).

Almost surely, 2^23213153 is an apocalyptic number.

It is an amenable number.

23213153 is a deficient number, since it is larger than the sum of its proper divisors (1).

23213153 is an equidigital number, since it uses as much as digits as its factorization.

23213153 is an evil number, because the sum of its binary digits is even.

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

The square root of 23213153 is about 4818.0030095466. The cubic root of 23213153 is about 285.2625179399.

Adding to 23213153 its reverse (35131232), we get a palindrome (58344385).

The spelling of 23213153 in words is "twenty-three million, two hundred thirteen thousand, one hundred fifty-three".