139791275 has 24 divisors (see below), whose sum is σ = 187279680. Its totient is φ = 102896640.

The previous prime is 139791257. The next prime is 139791287. The reversal of 139791275 is 572197931.

It is not a de Polignac number, because 139791275 - 2¹⁶ = 139725739 is a prime.

It is a super-2 number, since 2×139791275² = 39083201132251250, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 150011 + ... + 150939.

It is an arithmetic number, because the mean of its divisors is an integer number (7803320).

Almost surely, 2^139791275 is an apocalyptic number.

139791275 is a deficient number, since it is larger than the sum of its proper divisors (47488405).

139791275 is a wasteful number, since it uses less digits than its factorization.

139791275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415 (or 1410 counting only the distinct ones).

The product of its digits is 119070, while the sum is 44.

The square root of 139791275 is about 11823.3360351468. The cubic root of 139791275 is about 518.9912334257.

The spelling of 139791275 in words is "one hundred thirty-nine million, seven hundred ninety-one thousand, two hundred seventy-five".