117389537 has 2 divisors, whose sum is σ = 117389538. Its totient is φ = 117389536.

The previous prime is 117389533. The next prime is 117389603. The reversal of 117389537 is 735983711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107661376 + 9728161 = 10376^2 + 3119^2 .

It is an emirp because it is prime and its reverse (735983711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117389537 - 2² = 117389533 is a prime.

It is not a weakly prime, because it can be changed into another prime (117389533) 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, 58694768 + 58694769.

It is an arithmetic number, because the mean of its divisors is an integer number (58694769).

Almost surely, 2^117389537 is an apocalyptic number.

It is an amenable number.

117389537 is a deficient number, since it is larger than the sum of its proper divisors (1).

117389537 is an equidigital number, since it uses as much as digits as its factorization.

117389537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 44.

The square root of 117389537 is about 10834.6452180032. The cubic root of 117389537 is about 489.6395196809.

The spelling of 117389537 in words is "one hundred seventeen million, three hundred eighty-nine thousand, five hundred thirty-seven".