115497481 has 12 divisors (see below), whose sum is σ = 127960560. Its totient is φ = 103386360.

The previous prime is 115497457. The next prime is 115497493. The reversal of 115497481 is 184794511.

It is not a de Polignac number, because 115497481 - 2¹³ = 115489289 is a prime.

It is a super-2 number, since 2×115497481² = 26679336234690722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115497281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48210 + ... + 50548.

It is an arithmetic number, because the mean of its divisors is an integer number (10663380).

Almost surely, 2^115497481 is an apocalyptic number.

115497481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115497481 is the 5745-th centered heptagonal number.

It is an amenable number.

115497481 is a deficient number, since it is larger than the sum of its proper divisors (12463079).

115497481 is an equidigital number, since it uses as much as digits as its factorization.

115497481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484 (or 2417 counting only the distinct ones).

The product of its digits is 40320, while the sum is 40.

The square root of 115497481 is about 10746.9754349770. The cubic root of 115497481 is about 486.9946282438.

The spelling of 115497481 in words is "one hundred fifteen million, four hundred ninety-seven thousand, four hundred eighty-one".