115120291 has 8 divisors (see below), whose sum is σ = 135246384. Its totient is φ = 96604320.

The previous prime is 115120289. The next prime is 115120303. The reversal of 115120291 is 192021511.

115120291 = 289² + 290² + ... + 717².

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 115120291 - 2¹ = 115120289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115120591) 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, 402376 + ... + 402661.

It is an arithmetic number, because the mean of its divisors is an integer number (16905798).

Almost surely, 2^115120291 is an apocalyptic number.

115120291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115120291 is a deficient number, since it is larger than the sum of its proper divisors (20126093).

115120291 is a wasteful number, since it uses less digits than its factorization.

115120291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805061.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 115120291 is about 10729.4124256643. The cubic root of 115120291 is about 486.4639100863.

The spelling of 115120291 in words is "one hundred fifteen million, one hundred twenty thousand, two hundred ninety-one".