117970142 has 4 divisors (see below), whose sum is σ = 176955216. Its totient is φ = 58985070.

The previous prime is 117970133. The next prime is 117970163. The reversal of 117970142 is 241079711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241079711 = 4409 ⋅54679.

It is a junction number, because it is equal to n+sod(n) for n = 117970099 and 117970108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29492534 + ... + 29492537.

It is an arithmetic number, because the mean of its divisors is an integer number (44238804).

Almost surely, 2^117970142 is an apocalyptic number.

117970142 is a deficient number, since it is larger than the sum of its proper divisors (58985074).

117970142 is an equidigital number, since it uses as much as digits as its factorization.

117970142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58985073.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 117970142 is about 10861.4060784044. The cubic root of 117970142 is about 490.4454397324.

The spelling of 117970142 in words is "one hundred seventeen million, nine hundred seventy thousand, one hundred forty-two".