117161651 has 2 divisors, whose sum is σ = 117161652. Its totient is φ = 117161650.

The previous prime is 117161623. The next prime is 117161659. The reversal of 117161651 is 156161711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117161651 - 2¹⁰ = 117160627 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (117161659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58580825 + 58580826.

It is an arithmetic number, because the mean of its divisors is an integer number (58580826).

Almost surely, 2^117161651 is an apocalyptic number.

117161651 is a deficient number, since it is larger than the sum of its proper divisors (1).

117161651 is an equidigital number, since it uses as much as digits as its factorization.

117161651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 29.

The square root of 117161651 is about 10824.1235672917. The cubic root of 117161651 is about 489.3224719088.

The spelling of 117161651 in words is "one hundred seventeen million, one hundred sixty-one thousand, six hundred fifty-one".