23151629 has 2 divisors, whose sum is σ = 23151630. Its totient is φ = 23151628.

The previous prime is 23151577. The next prime is 23151631. The reversal of 23151629 is 92615132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16826404 + 6325225 = 4102^2 + 2515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23151629 is a prime.

Together with 23151631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23151679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11575814 + 11575815.

It is an arithmetic number, because the mean of its divisors is an integer number (11575815).

Almost surely, 2^23151629 is an apocalyptic number.

It is an amenable number.

23151629 is a deficient number, since it is larger than the sum of its proper divisors (1).

23151629 is an equidigital number, since it uses as much as digits as its factorization.

23151629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 23151629 is about 4811.6139703846. The cubic root of 23151629 is about 285.0102756119.

The spelling of 23151629 in words is "twenty-three million, one hundred fifty-one thousand, six hundred twenty-nine".