49139179 has 2 divisors, whose sum is σ = 49139180. Its totient is φ = 49139178.

The previous prime is 49139159. The next prime is 49139191. The reversal of 49139179 is 97193194.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49139179 - 2⁹ = 49138667 is a prime.

It is not a weakly prime, because it can be changed into another prime (49139119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24569589 + 24569590.

It is an arithmetic number, because the mean of its divisors is an integer number (24569590).

Almost surely, 2^49139179 is an apocalyptic number.

49139179 is a deficient number, since it is larger than the sum of its proper divisors (1).

49139179 is an equidigital number, since it uses as much as digits as its factorization.

49139179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 43.

The square root of 49139179 is about 7009.9343078234. The cubic root of 49139179 is about 366.2767050616.

The spelling of 49139179 in words is "forty-nine million, one hundred thirty-nine thousand, one hundred seventy-nine".