117772542 has 20 divisors (see below), whose sum is σ = 263898096. Its totient is φ = 39257460.

The previous prime is 117772511. The next prime is 117772559. The reversal of 117772542 is 245277711.

It is a junction number, because it is equal to n+sod(n) for n = 117772497 and 117772506.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 363334 + ... + 363657.

Almost surely, 2^117772542 is an apocalyptic number.

117772542 is an abundant number, since it is smaller than the sum of its proper divisors (146125554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117772542 is an equidigital number, since it uses as much as digits as its factorization.

117772542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727005 (or 726996 counting only the distinct ones).

The product of its digits is 27440, while the sum is 36.

The square root of 117772542 is about 10852.3058379314. The cubic root of 117772542 is about 490.1714546464.

The spelling of 117772542 in words is "one hundred seventeen million, seven hundred seventy-two thousand, five hundred forty-two".