115156261 has 8 divisors (see below), whose sum is σ = 126870048. Its totient is φ = 103650000.

The previous prime is 115156253. The next prime is 115156271. The reversal of 115156261 is 162651511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115156261 - 2³ = 115156253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115156241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50715 + ... + 52936.

It is an arithmetic number, because the mean of its divisors is an integer number (15858756).

Almost surely, 2^115156261 is an apocalyptic number.

115156261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115156261 is a deficient number, since it is larger than the sum of its proper divisors (11713787).

115156261 is a wasteful number, since it uses less digits than its factorization.

115156261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103763.

The product of its digits is 1800, while the sum is 28.

The square root of 115156261 is about 10731.0885281969. The cubic root of 115156261 is about 486.5145709633.

The spelling of 115156261 in words is "one hundred fifteen million, one hundred fifty-six thousand, two hundred sixty-one".