49138259 has 2 divisors, whose sum is σ = 49138260. Its totient is φ = 49138258.

The previous prime is 49138253. The next prime is 49138277. The reversal of 49138259 is 95283194.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49138259 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49138253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24569129 + 24569130.

It is an arithmetic number, because the mean of its divisors is an integer number (24569130).

Almost surely, 2^49138259 is an apocalyptic number.

49138259 is a deficient number, since it is larger than the sum of its proper divisors (1).

49138259 is an equidigital number, since it uses as much as digits as its factorization.

49138259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 49138259 is about 7009.8686863593. The cubic root of 49138259 is about 366.2744191960.

The spelling of 49138259 in words is "forty-nine million, one hundred thirty-eight thousand, two hundred fifty-nine".