123152929 has 2 divisors, whose sum is σ = 123152930. Its totient is φ = 123152928.

The previous prime is 123152891. The next prime is 123152951. The reversal of 123152929 is 929251321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119858704 + 3294225 = 10948^2 + 1815^2 .

It is a cyclic number.

It is not a de Polignac number, because 123152929 - 2¹⁵ = 123120161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123152894 and 123152903.

It is not a weakly prime, because it can be changed into another prime (123152629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61576464 + 61576465.

It is an arithmetic number, because the mean of its divisors is an integer number (61576465).

Almost surely, 2^123152929 is an apocalyptic number.

It is an amenable number.

123152929 is a deficient number, since it is larger than the sum of its proper divisors (1).

123152929 is an equidigital number, since it uses as much as digits as its factorization.

123152929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 34.

The square root of 123152929 is about 11097.4289364699. The cubic root of 123152929 is about 497.5250077073.

The spelling of 123152929 in words is "one hundred twenty-three million, one hundred fifty-two thousand, nine hundred twenty-nine".