117172061 has 4 divisors (see below), whose sum is σ = 117891072. Its totient is φ = 116453052.

The previous prime is 117172039. The next prime is 117172117. The reversal of 117172061 is 160271711.

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, and also an emirpimes, since its reverse is a distinct semiprime: 160271711 = 1129 ⋅141959.

It is a cyclic number.

It is not a de Polignac number, because 117172061 - 2¹⁰ = 117171037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117172061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117172001) 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, 359261 + ... + 359586.

It is an arithmetic number, because the mean of its divisors is an integer number (29472768).

Almost surely, 2^117172061 is an apocalyptic number.

It is an amenable number.

117172061 is a deficient number, since it is larger than the sum of its proper divisors (719011).

117172061 is an equidigital number, since it uses as much as digits as its factorization.

117172061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719010.

The product of its (nonzero) digits is 588, while the sum is 26.

The square root of 117172061 is about 10824.6044269525. The cubic root of 117172061 is about 489.3369638409.

The spelling of 117172061 in words is "one hundred seventeen million, one hundred seventy-two thousand, sixty-one".