139574157549 has 32 divisors (see below), whose sum is σ = 193596211200. Its totient is φ = 89350188480.

The previous prime is 139574157539. The next prime is 139574157659. The reversal of 139574157549 is 945751475931.

It is not a de Polignac number, because 139574157549 - 2²³ = 139565768941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139574157492 and 139574157501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139574157539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6279147 + ... + 6301335.

It is an arithmetic number, because the mean of its divisors is an integer number (6049881600).

Almost surely, 2^139574157549 is an apocalyptic number.

It is an amenable number.

139574157549 is a deficient number, since it is larger than the sum of its proper divisors (54022053651).

139574157549 is a wasteful number, since it uses less digits than its factorization.

139574157549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22745.

The product of its digits is 23814000, while the sum is 60.

The spelling of 139574157549 in words is "one hundred thirty-nine billion, five hundred seventy-four million, one hundred fifty-seven thousand, five hundred forty-nine".