139146917537 has 16 divisors (see below), whose sum is σ = 146465915904. Its totient is φ = 132018480000.

The previous prime is 139146917531. The next prime is 139146917551. The reversal of 139146917537 is 735719641931.

It is a cyclic number.

It is not a de Polignac number, because 139146917537 - 2⁸ = 139146917281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139146917531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3180662 + ... + 3224112.

It is an arithmetic number, because the mean of its divisors is an integer number (9154119744).

Almost surely, 2^139146917537 is an apocalyptic number.

It is an amenable number.

139146917537 is a deficient number, since it is larger than the sum of its proper divisors (7318998367).

139146917537 is a wasteful number, since it uses less digits than its factorization.

139146917537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45640.

The product of its digits is 4286520, while the sum is 56.

The spelling of 139146917537 in words is "one hundred thirty-nine billion, one hundred forty-six million, nine hundred seventeen thousand, five hundred thirty-seven".