139268793 has 8 divisors (see below), whose sum is σ = 186199168. Its totient is φ = 92592144.

The previous prime is 139268761. The next prime is 139268807. The reversal of 139268793 is 397862931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 139268793 - 2⁵ = 139268761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139268293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62146 + ... + 64347.

It is an arithmetic number, because the mean of its divisors is an integer number (23274896).

Almost surely, 2^139268793 is an apocalyptic number.

It is an amenable number.

139268793 is a deficient number, since it is larger than the sum of its proper divisors (46930375).

139268793 is a wasteful number, since it uses less digits than its factorization.

139268793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126863.

The product of its digits is 489888, while the sum is 48.

The square root of 139268793 is about 11801.2199793072. The cubic root of 139268793 is about 518.3438346203.

The spelling of 139268793 in words is "one hundred thirty-nine million, two hundred sixty-eight thousand, seven hundred ninety-three".