139968793 has 8 divisors (see below), whose sum is σ = 145113696. Its totient is φ = 134906400.

The previous prime is 139968791. The next prime is 139968799. The reversal of 139968793 is 397869931.

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

It is not a de Polignac number, because 139968793 - 2¹ = 139968791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139968791) 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, 17163 + ... + 23968.

It is an arithmetic number, because the mean of its divisors is an integer number (18139212).

Almost surely, 2^139968793 is an apocalyptic number.

It is an amenable number.

139968793 is a deficient number, since it is larger than the sum of its proper divisors (5144903).

139968793 is an equidigital number, since it uses as much as digits as its factorization.

139968793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41255.

The product of its digits is 2204496, while the sum is 55.

The square root of 139968793 is about 11830.8407562607. The cubic root of 139968793 is about 519.2108258506.

The spelling of 139968793 in words is "one hundred thirty-nine million, nine hundred sixty-eight thousand, seven hundred ninety-three".