115501567 has 4 divisors (see below), whose sum is σ = 119227456. Its totient is φ = 111775680.

The previous prime is 115501559. The next prime is 115501571. The reversal of 115501567 is 765105511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 765105511 = 23 ⋅33265457.

It is a cyclic number.

It is not a de Polignac number, because 115501567 - 2³ = 115501559 is a prime.

It is a super-2 number, since 2×115501567² = 26681223958910978, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 3725857 = 115501567 / (1 + 1 + 5 + 5 + 0 + 1 + 5 + 6 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115501597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862898 + ... + 1862959.

It is an arithmetic number, because the mean of its divisors is an integer number (29806864).

Almost surely, 2^115501567 is an apocalyptic number.

115501567 is a deficient number, since it is larger than the sum of its proper divisors (3725889).

115501567 is an equidigital number, since it uses as much as digits as its factorization.

115501567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3725888.

The product of its (nonzero) digits is 5250, while the sum is 31.

The square root of 115501567 is about 10747.1655332930. The cubic root of 115501567 is about 487.0003710432. Note that the first 3 decimals are identical.

The spelling of 115501567 in words is "one hundred fifteen million, five hundred one thousand, five hundred sixty-seven".