13139293 has 8 divisors (see below), whose sum is σ = 13325312. Its totient is φ = 12954816.

The previous prime is 13139263. The next prime is 13139297. The reversal of 13139293 is 39293131.

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

It is a cyclic number.

It is not a de Polignac number, because 13139293 - 2⁵ = 13139261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13139297) 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, 38821 + ... + 39157.

It is an arithmetic number, because the mean of its divisors is an integer number (1665664).

Almost surely, 2^13139293 is an apocalyptic number.

It is an amenable number.

13139293 is a deficient number, since it is larger than the sum of its proper divisors (186019).

13139293 is a wasteful number, since it uses less digits than its factorization.

13139293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771.

The product of its digits is 4374, while the sum is 31.

The square root of 13139293 is about 3624.8162712060. The cubic root of 13139293 is about 235.9702933498.

The spelling of 13139293 in words is "thirteen million, one hundred thirty-nine thousand, two hundred ninety-three".