123764731 has 2 divisors, whose sum is σ = 123764732. Its totient is φ = 123764730.

The previous prime is 123764701. The next prime is 123764737. The reversal of 123764731 is 137467321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123764731 - 2¹⁵ = 123731963 is a prime.

It is a super-2 number, since 2×123764731² = 30635417279004722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123764737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61882365 + 61882366.

It is an arithmetic number, because the mean of its divisors is an integer number (61882366).

Almost surely, 2^123764731 is an apocalyptic number.

123764731 is a deficient number, since it is larger than the sum of its proper divisors (1).

123764731 is an equidigital number, since it uses as much as digits as its factorization.

123764731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 34.

The square root of 123764731 is about 11124.9598201522. The cubic root of 123764731 is about 498.3475192983.

The spelling of 123764731 in words is "one hundred twenty-three million, seven hundred sixty-four thousand, seven hundred thirty-one".