117258649 has 2 divisors, whose sum is σ = 117258650. Its totient is φ = 117258648.

The previous prime is 117258641. The next prime is 117258683. The reversal of 117258649 is 946852711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111936400 + 5322249 = 10580^2 + 2307^2 .

It is a cyclic number.

It is not a de Polignac number, because 117258649 - 2³ = 117258641 is a prime.

It is not a weakly prime, because it can be changed into another prime (117258641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58629324 + 58629325.

It is an arithmetic number, because the mean of its divisors is an integer number (58629325).

Almost surely, 2^117258649 is an apocalyptic number.

It is an amenable number.

117258649 is a deficient number, since it is larger than the sum of its proper divisors (1).

117258649 is an equidigital number, since it uses as much as digits as its factorization.

117258649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 117258649 is about 10828.6032802019. The cubic root of 117258649 is about 489.4574711697.

The spelling of 117258649 in words is "one hundred seventeen million, two hundred fifty-eight thousand, six hundred forty-nine".