8913139 has 2 divisors, whose sum is σ = 8913140. Its totient is φ = 8913138.

The previous prime is 8913119. The next prime is 8913143. The reversal of 8913139 is 9313198.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8913139 - 2⁹ = 8912627 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8913119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4456569 + 4456570.

It is an arithmetic number, because the mean of its divisors is an integer number (4456570).

Almost surely, 2^8913139 is an apocalyptic number.

8913139 is a deficient number, since it is larger than the sum of its proper divisors (1).

8913139 is an equidigital number, since it uses as much as digits as its factorization.

8913139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 34.

The square root of 8913139 is about 2985.4880673016. The cubic root of 8913139 is about 207.3370395172.

The spelling of 8913139 in words is "eight million, nine hundred thirteen thousand, one hundred thirty-nine".