139332313 has 6 divisors (see below), whose sum is σ = 139963434. Its totient is φ = 138702816.

The previous prime is 139332307. The next prime is 139332331. The reversal of 139332313 is 313233931.

It can be written as a sum of positive squares in only one way, i.e., 105842944 + 33489369 = 10288^2 + 5787^2 .

It is not a de Polignac number, because 139332313 - 2¹⁷ = 139201241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139332013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216370 + ... + 217012.

It is an arithmetic number, because the mean of its divisors is an integer number (23327239).

Almost surely, 2^139332313 is an apocalyptic number.

It is an amenable number.

139332313 is a deficient number, since it is larger than the sum of its proper divisors (631121).

139332313 is an frugal number, since it uses more digits than its factorization.

139332313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 980 counting only the distinct ones).

The product of its digits is 4374, while the sum is 28.

The square root of 139332313 is about 11803.9109196910. The cubic root of 139332313 is about 518.4226275675.

The spelling of 139332313 in words is "one hundred thirty-nine million, three hundred thirty-two thousand, three hundred thirteen".