138962495 has 8 divisors (see below), whose sum is σ = 190577184. Its totient is φ = 95288544.

The previous prime is 138962479. The next prime is 138962521. The reversal of 138962495 is 594269831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138962495 - 2⁴ = 138962479 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1985144 + ... + 1985213.

It is an arithmetic number, because the mean of its divisors is an integer number (23822148).

Almost surely, 2^138962495 is an apocalyptic number.

138962495 is a deficient number, since it is larger than the sum of its proper divisors (51614689).

138962495 is an equidigital number, since it uses as much as digits as its factorization.

138962495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3970369.

The product of its digits is 466560, while the sum is 47.

The square root of 138962495 is about 11788.2354489550. The cubic root of 138962495 is about 517.9635526897.

The spelling of 138962495 in words is "one hundred thirty-eight million, nine hundred sixty-two thousand, four hundred ninety-five".