117190457 has 2 divisors, whose sum is σ = 117190458. Its totient is φ = 117190456.

The previous prime is 117190397. The next prime is 117190471. The reversal of 117190457 is 754091711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88717561 + 28472896 = 9419^2 + 5336^2 .

It is an emirp because it is prime and its reverse (754091711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117190457 - 2¹⁸ = 116928313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117190487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58595228 + 58595229.

It is an arithmetic number, because the mean of its divisors is an integer number (58595229).

Almost surely, 2^117190457 is an apocalyptic number.

It is an amenable number.

117190457 is a deficient number, since it is larger than the sum of its proper divisors (1).

117190457 is an equidigital number, since it uses as much as digits as its factorization.

117190457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 117190457 is about 10825.4541244236. The cubic root of 117190457 is about 489.3625711163.

The spelling of 117190457 in words is "one hundred seventeen million, one hundred ninety thousand, four hundred fifty-seven".