117012761 has 4 divisors (see below), whose sum is σ = 119734032. Its totient is φ = 114291492.

The previous prime is 117012733. The next prime is 117012781. The reversal of 117012761 is 167210711.

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.

It is a cyclic number.

It is not a de Polignac number, because 117012761 - 2²² = 112818457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 117012761.

It is not an unprimeable number, because it can be changed into a prime (117012781) 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, 1360571 + ... + 1360656.

It is an arithmetic number, because the mean of its divisors is an integer number (29933508).

Almost surely, 2^117012761 is an apocalyptic number.

It is an amenable number.

117012761 is a deficient number, since it is larger than the sum of its proper divisors (2721271).

117012761 is an equidigital number, since it uses as much as digits as its factorization.

117012761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721270.

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

The square root of 117012761 is about 10817.2436877423. The cubic root of 117012761 is about 489.1151056881.

It can be divided in two parts, 1170 and 12761, that added together give a palindrome (13931).

The spelling of 117012761 in words is "one hundred seventeen million, twelve thousand, seven hundred sixty-one".