49124909 has 2 divisors, whose sum is σ = 49124910. Its totient is φ = 49124908.

The previous prime is 49124903. The next prime is 49124953. The reversal of 49124909 is 90942194.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27269284 + 21855625 = 5222^2 + 4675^2 .

It is a cyclic number.

It is not a de Polignac number, because 49124909 - 2⁸ = 49124653 is a prime.

It is equal to p_2951579 and since 49124909 and 2951579 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49124903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24562454 + 24562455.

It is an arithmetic number, because the mean of its divisors is an integer number (24562455).

Almost surely, 2^49124909 is an apocalyptic number.

It is an amenable number.

49124909 is a deficient number, since it is larger than the sum of its proper divisors (1).

49124909 is an equidigital number, since it uses as much as digits as its factorization.

49124909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 49124909 is about 7008.9163927101. The cubic root of 49124909 is about 366.2412460876.

The spelling of 49124909 in words is "forty-nine million, one hundred twenty-four thousand, nine hundred nine".