123104651 has 2 divisors, whose sum is σ = 123104652. Its totient is φ = 123104650.

The previous prime is 123104593. The next prime is 123104669. The reversal of 123104651 is 156401321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123104651 - 2¹⁸ = 122842507 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123104951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61552325 + 61552326.

It is an arithmetic number, because the mean of its divisors is an integer number (61552326).

Almost surely, 2^123104651 is an apocalyptic number.

123104651 is a deficient number, since it is larger than the sum of its proper divisors (1).

123104651 is an equidigital number, since it uses as much as digits as its factorization.

123104651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 123104651 is about 11095.2535347328. The cubic root of 123104651 is about 497.4599865127.

Adding to 123104651 its reverse (156401321), we get a palindrome (279505972).

It can be divided in two parts, 12310 and 4651, that added together give a palindrome (16961).

The spelling of 123104651 in words is "one hundred twenty-three million, one hundred four thousand, six hundred fifty-one".