117157001537 has 4 divisors (see below), whose sum is σ = 118568531760. Its totient is φ = 115745471316.

The previous prime is 117157001531. The next prime is 117157001543. The reversal of 117157001537 is 735100751711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 735100751711 = 2999 ⋅245115289.

It is an interprime number because it is at equal distance from previous prime (117157001531) and next prime (117157001543).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117157001537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117157001537.

It is not an unprimeable number, because it can be changed into a prime (117157001531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705764987 + ... + 705765152.

It is an arithmetic number, because the mean of its divisors is an integer number (29642132940).

Almost surely, 2^117157001537 is an apocalyptic number.

It is an amenable number.

117157001537 is a deficient number, since it is larger than the sum of its proper divisors (1411530223).

117157001537 is an equidigital number, since it uses as much as digits as its factorization.

117157001537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411530222.

The product of its (nonzero) digits is 25725, while the sum is 38.

The spelling of 117157001537 in words is "one hundred seventeen billion, one hundred fifty-seven million, one thousand, five hundred thirty-seven".