117877551 has 16 divisors (see below), whose sum is σ = 175108608. Its totient is φ = 69920000.

The previous prime is 117877493. The next prime is 117877603. The reversal of 117877551 is 155778711.

117877551 = 1073² + 1074² + ... + 1166².

It is a cyclic number.

It is not a de Polignac number, because 117877551 - 2¹⁴ = 117861167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117897551) 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, 36450 + ... + 39551.

It is an arithmetic number, because the mean of its divisors is an integer number (10944288).

Almost surely, 2^117877551 is an apocalyptic number.

117877551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117877551 is a deficient number, since it is larger than the sum of its proper divisors (57231057).

117877551 is a wasteful number, since it uses less digits than its factorization.

117877551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76062.

The product of its digits is 68600, while the sum is 42.

The square root of 117877551 is about 10857.1428562030. The cubic root of 117877551 is about 490.3170944901.

The spelling of 117877551 in words is "one hundred seventeen million, eight hundred seventy-seven thousand, five hundred fifty-one".