117054861 has 16 divisors (see below), whose sum is σ = 194585088. Its totient is φ = 60807600.

The previous prime is 117054857. The next prime is 117054871. The reversal of 117054861 is 168450711.

It is a happy number.

It is not a de Polignac number, because 117054861 - 2² = 117054857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117054851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253135 + ... + 253596.

It is an arithmetic number, because the mean of its divisors is an integer number (12161568).

Almost surely, 2^117054861 is an apocalyptic number.

117054861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

117054861 is a deficient number, since it is larger than the sum of its proper divisors (77530227).

117054861 is a wasteful number, since it uses less digits than its factorization.

117054861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506752.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 117054861 is about 10819.1894798085. The cubic root of 117054861 is about 489.1737581994.

The spelling of 117054861 in words is "one hundred seventeen million, fifty-four thousand, eight hundred sixty-one".