117405461 has 2 divisors, whose sum is σ = 117405462. Its totient is φ = 117405460.

The previous prime is 117405443. The next prime is 117405481. The reversal of 117405461 is 164504711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114276100 + 3129361 = 10690^2 + 1769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117405461 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117405481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58702730 + 58702731.

It is an arithmetic number, because the mean of its divisors is an integer number (58702731).

Almost surely, 2^117405461 is an apocalyptic number.

It is an amenable number.

117405461 is a deficient number, since it is larger than the sum of its proper divisors (1).

117405461 is an equidigital number, since it uses as much as digits as its factorization.

117405461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 117405461 is about 10835.3800579398. The cubic root of 117405461 is about 489.6616586988.

The spelling of 117405461 in words is "one hundred seventeen million, four hundred five thousand, four hundred sixty-one".