115280137 has 4 divisors (see below), whose sum is σ = 131748736. Its totient is φ = 98811540.

The previous prime is 115280101. The next prime is 115280147. The reversal of 115280137 is 731082511.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115280137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115280147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8234289 + ... + 8234302.

It is an arithmetic number, because the mean of its divisors is an integer number (32937184).

Almost surely, 2^115280137 is an apocalyptic number.

It is an amenable number.

115280137 is a deficient number, since it is larger than the sum of its proper divisors (16468599).

115280137 is an equidigital number, since it uses as much as digits as its factorization.

115280137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16468598.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 115280137 is about 10736.8588050696. The cubic root of 115280137 is about 486.6889597490.

The spelling of 115280137 in words is "one hundred fifteen million, two hundred eighty thousand, one hundred thirty-seven".