117538427 has 4 divisors (see below), whose sum is σ = 123724680. Its totient is φ = 111352176.

The previous prime is 117538423. The next prime is 117538439. The reversal of 117538427 is 724835711.

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

It is a cyclic number.

It is not a de Polignac number, because 117538427 - 2² = 117538423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117538423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3093098 + ... + 3093135.

It is an arithmetic number, because the mean of its divisors is an integer number (30931170).

Almost surely, 2^117538427 is an apocalyptic number.

117538427 is a deficient number, since it is larger than the sum of its proper divisors (6186253).

117538427 is an equidigital number, since it uses as much as digits as its factorization.

117538427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186252.

The product of its digits is 47040, while the sum is 38.

The square root of 117538427 is about 10841.5140547804. The cubic root of 117538427 is about 489.8464422338.

The spelling of 117538427 in words is "one hundred seventeen million, five hundred thirty-eight thousand, four hundred twenty-seven".