117740157 has 4 divisors (see below), whose sum is σ = 156986880. Its totient is φ = 78493436.

The previous prime is 117740143. The next prime is 117740173. The reversal of 117740157 is 751047711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117740157 - 2¹⁴ = 117723773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117744157) 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 in 3 ways as a sum of consecutive naturals, for example, 19623357 + ... + 19623362.

It is an arithmetic number, because the mean of its divisors is an integer number (39246720).

Almost surely, 2^117740157 is an apocalyptic number.

It is an amenable number.

117740157 is a deficient number, since it is larger than the sum of its proper divisors (39246723).

117740157 is an equidigital number, since it uses as much as digits as its factorization.

117740157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39246722.

The product of its (nonzero) digits is 6860, while the sum is 33.

The square root of 117740157 is about 10850.8136561274. The cubic root of 117740157 is about 490.1265215419.

Adding to 117740157 its reverse (751047711), we get a palindrome (868787868).

The spelling of 117740157 in words is "one hundred seventeen million, seven hundred forty thousand, one hundred fifty-seven".