138952753 has 2 divisors, whose sum is σ = 138952754. Its totient is φ = 138952752.

The previous prime is 138952741. The next prime is 138952771. The reversal of 138952753 is 357259831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126157824 + 12794929 = 11232^2 + 3577^2 .

It is a cyclic number.

It is not a de Polignac number, because 138952753 - 2⁵ = 138952721 is a prime.

It is equal to p_7856278 and since 138952753 and 7856278 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (138952703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69476376 + 69476377.

It is an arithmetic number, because the mean of its divisors is an integer number (69476377).

Almost surely, 2^138952753 is an apocalyptic number.

It is an amenable number.

138952753 is a deficient number, since it is larger than the sum of its proper divisors (1).

138952753 is an equidigital number, since it uses as much as digits as its factorization.

138952753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 43.

The square root of 138952753 is about 11787.8222331353. The cubic root of 138952753 is about 517.9514484192.

The spelling of 138952753 in words is "one hundred thirty-eight million, nine hundred fifty-two thousand, seven hundred fifty-three".