117951142 has 4 divisors (see below), whose sum is σ = 176926716. Its totient is φ = 58975570.

The previous prime is 117951139. The next prime is 117951143. The reversal of 117951142 is 241159711.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117951143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29487784 + ... + 29487787.

It is an arithmetic number, because the mean of its divisors is an integer number (44231679).

Almost surely, 2^117951142 is an apocalyptic number.

117951142 is a deficient number, since it is larger than the sum of its proper divisors (58975574).

117951142 is an equidigital number, since it uses as much as digits as its factorization.

117951142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58975573.

The product of its digits is 2520, while the sum is 31.

The square root of 117951142 is about 10860.5313866311. The cubic root of 117951142 is about 490.4191083136.

The spelling of 117951142 in words is "one hundred seventeen million, nine hundred fifty-one thousand, one hundred forty-two".