139252995 has 96 divisors (see below), whose sum is σ = 296524800. Its totient is φ = 59035392.

The previous prime is 139252991. The next prime is 139253003. The reversal of 139252995 is 599252931.

139252995 is a `hidden beast` number, since 1 + 39 + 2 + 529 + 95 = 666.

It is not a de Polignac number, because 139252995 - 2² = 139252991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 139252995.

It is not an unprimeable number, because it can be changed into a prime (139252991) 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 95 ways as a sum of consecutive naturals, for example, 316986 + ... + 317424.

It is an arithmetic number, because the mean of its divisors is an integer number (3088800).

Almost surely, 2^139252995 is an apocalyptic number.

139252995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139252995 is an abundant number, since it is smaller than the sum of its proper divisors (157271805).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139252995 is a wasteful number, since it uses less digits than its factorization.

139252995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 526 counting only the distinct ones).

The product of its digits is 218700, while the sum is 45.

The square root of 139252995 is about 11800.5506227464. The cubic root of 139252995 is about 518.3242343797.

The spelling of 139252995 in words is "one hundred thirty-nine million, two hundred fifty-two thousand, nine hundred ninety-five".