139800715 has 8 divisors (see below), whose sum is σ = 170511408. Its totient is φ = 110006880.

The previous prime is 139800709. The next prime is 139800719. The reversal of 139800715 is 517008931.

It is a happy number.

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

It is not a de Polignac number, because 139800715 - 2⁷ = 139800587 is a prime.

It is a super-2 number, since 2×139800715² = 39088479829022450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139800719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228877 + ... + 229486.

It is an arithmetic number, because the mean of its divisors is an integer number (21313926).

Almost surely, 2^139800715 is an apocalyptic number.

139800715 is a deficient number, since it is larger than the sum of its proper divisors (30710693).

139800715 is an equidigital number, since it uses as much as digits as its factorization.

139800715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458429.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 139800715 is about 11823.7352389167. The cubic root of 139800715 is about 519.0029155257.

The spelling of 139800715 in words is "one hundred thirty-nine million, eight hundred thousand, seven hundred fifteen".