60015139 has 2 divisors, whose sum is σ = 60015140. Its totient is φ = 60015138.

The previous prime is 60015127. The next prime is 60015173. The reversal of 60015139 is 93151006.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60015139 is a prime.

It is not a weakly prime, because it can be changed into another prime (60016139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30007569 + 30007570.

It is an arithmetic number, because the mean of its divisors is an integer number (30007570).

Almost surely, 2^60015139 is an apocalyptic number.

60015139 is a deficient number, since it is larger than the sum of its proper divisors (1).

60015139 is an equidigital number, since it uses as much as digits as its factorization.

60015139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 60015139 is about 7746.9438490285. The cubic root of 60015139 is about 391.5196875598.

The spelling of 60015139 in words is "sixty million, fifteen thousand, one hundred thirty-nine".