115490 has 8 divisors (see below), whose sum is σ = 207900. Its totient is φ = 46192.

The previous prime is 115471. The next prime is 115499. The reversal of 115490 is 94511.

It can be written as a sum of positive squares in 2 ways, for example, as 109561 + 5929 = 331^2 + 77^2 .

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

It is a super-4 number, since 4×115490⁴ (a number of 21 digits) contains 4444 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 115490.

It is not an unprimeable number, because it can be changed into a prime (115499) by changing a digit.

115490 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5765 + ... + 5784.

2¹¹⁵⁴⁹⁰ is an apocalyptic number.

115490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115490 is a deficient number, since it is larger than the sum of its proper divisors (92410).

115490 is a wasteful number, since it uses less digits than its factorization.

115490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11556.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 115490 is about 339.8381967937. The cubic root of 115490 is about 48.6984113482.

The spelling of 115490 in words is "one hundred fifteen thousand, four hundred ninety".