139890701507 has 4 divisors (see below), whose sum is σ = 140911801656. Its totient is φ = 138869601360.

The previous prime is 139890701393. The next prime is 139890701563. The reversal of 139890701507 is 705107098931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139890701507 - 2¹⁸ = 139890439363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139890781507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510549869 + ... + 510550142.

It is an arithmetic number, because the mean of its divisors is an integer number (35227950414).

Almost surely, 2^139890701507 is an apocalyptic number.

139890701507 is a deficient number, since it is larger than the sum of its proper divisors (1021100149).

139890701507 is a wasteful number, since it uses less digits than its factorization.

139890701507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021100148.

The product of its (nonzero) digits is 476280, while the sum is 50.

The spelling of 139890701507 in words is "one hundred thirty-nine billion, eight hundred ninety million, seven hundred one thousand, five hundred seven".