117152137 has 2 divisors, whose sum is σ = 117152138. Its totient is φ = 117152136.

The previous prime is 117152107. The next prime is 117152143. The reversal of 117152137 is 731251711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58614336 + 58537801 = 7656^2 + 7651^2 .

It is an emirp because it is prime and its reverse (731251711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117152137 - 2¹⁵ = 117119369 is a prime.

It is not a weakly prime, because it can be changed into another prime (117152107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58576068 + 58576069.

It is an arithmetic number, because the mean of its divisors is an integer number (58576069).

Almost surely, 2^117152137 is an apocalyptic number.

It is an amenable number.

117152137 is a deficient number, since it is larger than the sum of its proper divisors (1).

117152137 is an equidigital number, since it uses as much as digits as its factorization.

117152137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1470, while the sum is 28.

The square root of 117152137 is about 10823.6840770599. The cubic root of 117152137 is about 489.3092265622.

It can be divided in two parts, 11715213 and 7, that added together give a triangular number (11715220 = T₄₈₄₀).

The spelling of 117152137 in words is "one hundred seventeen million, one hundred fifty-two thousand, one hundred thirty-seven".