139331413 has 4 divisors (see below), whose sum is σ = 150049228. Its totient is φ = 128613600.

The previous prime is 139331411. The next prime is 139331443. The reversal of 139331413 is 314133931.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11573604 + 127757809 = 3402^2 + 11303^2 .

It is a cyclic number.

It is not a de Polignac number, because 139331413 - 2¹ = 139331411 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 (139331411) 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, 5358888 + ... + 5358913.

It is an arithmetic number, because the mean of its divisors is an integer number (37512307).

Almost surely, 2^139331413 is an apocalyptic number.

139331413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

139331413 is a deficient number, since it is larger than the sum of its proper divisors (10717815).

139331413 is a wasteful number, since it uses less digits than its factorization.

139331413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10717814.

The product of its digits is 2916, while the sum is 28.

The square root of 139331413 is about 11803.8727966714. The cubic root of 139331413 is about 518.4215113359.

The spelling of 139331413 in words is "one hundred thirty-nine million, three hundred thirty-one thousand, four hundred thirteen".