49263139 has 2 divisors, whose sum is σ = 49263140. Its totient is φ = 49263138.

The previous prime is 49263113. The next prime is 49263187. The reversal of 49263139 is 93136294.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49263139 - 2⁵ = 49263107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49263098 and 49263107.

It is not a weakly prime, because it can be changed into another prime (49263439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24631569 + 24631570.

It is an arithmetic number, because the mean of its divisors is an integer number (24631570).

Almost surely, 2^49263139 is an apocalyptic number.

49263139 is a deficient number, since it is larger than the sum of its proper divisors (1).

49263139 is an equidigital number, since it uses as much as digits as its factorization.

49263139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 37.

The square root of 49263139 is about 7018.7704763726. The cubic root of 49263139 is about 366.5844400557.

The spelling of 49263139 in words is "forty-nine million, two hundred sixty-three thousand, one hundred thirty-nine".