139840413 has 8 divisors (see below), whose sum is σ = 186529728. Its totient is φ = 93189024.

The previous prime is 139840409. The next prime is 139840433. The reversal of 139840413 is 314048931.

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

It is not a de Polignac number, because 139840413 - 2² = 139840409 is a prime.

It is a super-2 number, since 2×139840413² = 39110682216021138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139840433) 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, 681 + ... + 16737.

It is an arithmetic number, because the mean of its divisors is an integer number (23316216).

Almost surely, 2^139840413 is an apocalyptic number.

It is an amenable number.

139840413 is a deficient number, since it is larger than the sum of its proper divisors (46689315).

139840413 is a wasteful number, since it uses less digits than its factorization.

139840413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18963.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 139840413 is about 11825.4138616794. The cubic root of 139840413 is about 519.0520364663.

The spelling of 139840413 in words is "one hundred thirty-nine million, eight hundred forty thousand, four hundred thirteen".