117740251 has 2 divisors, whose sum is σ = 117740252. Its totient is φ = 117740250.

The previous prime is 117740221. The next prime is 117740281. The reversal of 117740251 is 152047711.

It is a balanced prime because it is at equal distance from previous prime (117740221) and next prime (117740281).

It is a cyclic number.

It is not a de Polignac number, because 117740251 - 2⁵ = 117740219 is a prime.

It is not a weakly prime, because it can be changed into another prime (117740221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58870125 + 58870126.

It is an arithmetic number, because the mean of its divisors is an integer number (58870126).

Almost surely, 2^117740251 is an apocalyptic number.

117740251 is a deficient number, since it is larger than the sum of its proper divisors (1).

117740251 is an equidigital number, since it uses as much as digits as its factorization.

117740251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 117740251 is about 10850.8179875989. The cubic root of 117740251 is about 490.1266519757.

Adding to 117740251 its reverse (152047711), we get a palindrome (269787962).

The spelling of 117740251 in words is "one hundred seventeen million, seven hundred forty thousand, two hundred fifty-one".