139124734 has 8 divisors (see below), whose sum is σ = 238499568. Its totient is φ = 59624880.

The previous prime is 139124731. The next prime is 139124759. The reversal of 139124734 is 437421931.

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

It is a super-2 number, since 2×139124734² = 38711383221141512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 139124734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139124731) 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, 4968727 + ... + 4968754.

It is an arithmetic number, because the mean of its divisors is an integer number (29812446).

Almost surely, 2^139124734 is an apocalyptic number.

139124734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

139124734 is a deficient number, since it is larger than the sum of its proper divisors (99374834).

139124734 is an equidigital number, since it uses as much as digits as its factorization.

139124734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9937490.

The product of its digits is 18144, while the sum is 34.

The square root of 139124734 is about 11795.1148362362. The cubic root of 139124734 is about 518.1650488002.

The spelling of 139124734 in words is "one hundred thirty-nine million, one hundred twenty-four thousand, seven hundred thirty-four".