117360721 has 2 divisors, whose sum is σ = 117360722. Its totient is φ = 117360720.

The previous prime is 117360629. The next prime is 117360731. The reversal of 117360721 is 127063711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96530625 + 20830096 = 9825^2 + 4564^2 .

It is a cyclic number.

It is not a de Polignac number, because 117360721 - 2¹⁷ = 117229649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117360721.

It is not a weakly prime, because it can be changed into another prime (117360731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58680360 + 58680361.

It is an arithmetic number, because the mean of its divisors is an integer number (58680361).

Almost surely, 2^117360721 is an apocalyptic number.

It is an amenable number.

117360721 is a deficient number, since it is larger than the sum of its proper divisors (1).

117360721 is an equidigital number, since it uses as much as digits as its factorization.

117360721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 117360721 is about 10833.3153281902. The cubic root of 117360721 is about 489.5994519218.

The spelling of 117360721 in words is "one hundred seventeen million, three hundred sixty thousand, seven hundred twenty-one".