34131623 has 2 divisors, whose sum is σ = 34131624. Its totient is φ = 34131622.

The previous prime is 34131599. The next prime is 34131653. The reversal of 34131623 is 32613143.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34131623 is a prime.

It is a super-2 number, since 2×34131623² = 2329935377228258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34131653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17065811 + 17065812.

It is an arithmetic number, because the mean of its divisors is an integer number (17065812).

Almost surely, 2^34131623 is an apocalyptic number.

34131623 is a deficient number, since it is larger than the sum of its proper divisors (1).

34131623 is an equidigital number, since it uses as much as digits as its factorization.

34131623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 23.

The square root of 34131623 is about 5842.2275717401. The cubic root of 34131623 is about 324.3786883230.

Adding to 34131623 its reverse (32613143), we get a palindrome (66744766).

The spelling of 34131623 in words is "thirty-four million, one hundred thirty-one thousand, six hundred twenty-three".