139745049031 has 32 divisors (see below), whose sum is σ = 167208910848. Its totient is φ = 114191843040.

The previous prime is 139745049011. The next prime is 139745049049. The reversal of 139745049031 is 130940547931.

It is a cyclic number.

It is not a de Polignac number, because 139745049031 - 2⁷ = 139745048903 is a prime.

It is a super-2 number, since 2×139745049031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139745049011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89179210 + ... + 89180776.

It is an arithmetic number, because the mean of its divisors is an integer number (5225278464).

Almost surely, 2^139745049031 is an apocalyptic number.

139745049031 is a deficient number, since it is larger than the sum of its proper divisors (27463861817).

139745049031 is a wasteful number, since it uses less digits than its factorization.

139745049031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 139745049031 in words is "one hundred thirty-nine billion, seven hundred forty-five million, forty-nine thousand, thirty-one".