23429137 has 2 divisors, whose sum is σ = 23429138. Its totient is φ = 23429136.

The previous prime is 23429117. The next prime is 23429141. The reversal of 23429137 is 73192432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21381376 + 2047761 = 4624^2 + 1431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23429137 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23429099 and 23429108.

It is not a weakly prime, because it can be changed into another prime (23429117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11714568 + 11714569.

It is an arithmetic number, because the mean of its divisors is an integer number (11714569).

Almost surely, 2^23429137 is an apocalyptic number.

It is an amenable number.

23429137 is a deficient number, since it is larger than the sum of its proper divisors (1).

23429137 is an equidigital number, since it uses as much as digits as its factorization.

23429137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 31.

The square root of 23429137 is about 4840.3653787705. The cubic root of 23429137 is about 286.1445183838.

The spelling of 23429137 in words is "twenty-three million, four hundred twenty-nine thousand, one hundred thirty-seven".