10115990 has 8 divisors (see below), whose sum is σ = 18208800. Its totient is φ = 4046392.

The previous prime is 10115953. The next prime is 10115993. The reversal of 10115990 is 9951101.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10115993) 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, 505790 + ... + 505809.

It is an arithmetic number, because the mean of its divisors is an integer number (2276100).

Almost surely, 2^10115990 is an apocalyptic number.

10115990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10115990 is a deficient number, since it is larger than the sum of its proper divisors (8092810).

10115990 is a wasteful number, since it uses less digits than its factorization.

10115990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011606.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 10115990 is about 3180.5644153200. The cubic root of 10115990 is about 216.2732452988.

The spelling of 10115990 in words is "ten million, one hundred fifteen thousand, nine hundred ninety".