117556429 has 2 divisors, whose sum is σ = 117556430. Its totient is φ = 117556428.

The previous prime is 117556409. The next prime is 117556487. The reversal of 117556429 is 924655711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93644329 + 23912100 = 9677^2 + 4890^2 .

It is a cyclic number.

It is not a de Polignac number, because 117556429 - 2⁷ = 117556301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117556391 and 117556400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117556409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58778214 + 58778215.

It is an arithmetic number, because the mean of its divisors is an integer number (58778215).

Almost surely, 2^117556429 is an apocalyptic number.

It is an amenable number.

117556429 is a deficient number, since it is larger than the sum of its proper divisors (1).

117556429 is an equidigital number, since it uses as much as digits as its factorization.

117556429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 117556429 is about 10842.3442575856. The cubic root of 117556429 is about 489.8714489933.

The spelling of 117556429 in words is "one hundred seventeen million, five hundred fifty-six thousand, four hundred twenty-nine".