139782755 has 32 divisors (see below), whose sum is σ = 210003840. Its totient is φ = 87091200.

The previous prime is 139782749. The next prime is 139782757. The reversal of 139782755 is 557287931.

It is not a de Polignac number, because 139782755 - 2⁴ = 139782739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139782757) 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 in 31 ways as a sum of consecutive naturals, for example, 13205 + ... + 21305.

It is an arithmetic number, because the mean of its divisors is an integer number (6562620).

Almost surely, 2^139782755 is an apocalyptic number.

139782755 is a deficient number, since it is larger than the sum of its proper divisors (70221085).

139782755 is a wasteful number, since it uses less digits than its factorization.

139782755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8159.

The product of its digits is 529200, while the sum is 47.

The square root of 139782755 is about 11822.9757252563. The cubic root of 139782755 is about 518.9806893839.

The spelling of 139782755 in words is "one hundred thirty-nine million, seven hundred eighty-two thousand, seven hundred fifty-five".