12513890 has 16 divisors (see below), whose sum is σ = 22654080. Its totient is φ = 4976880.

The previous prime is 12513889. The next prime is 12513901. The reversal of 12513890 is 9831521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1706 + ... + 5285.

It is an arithmetic number, because the mean of its divisors is an integer number (1415880).

Almost surely, 2^12513890 is an apocalyptic number.

12513890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12513890 is a deficient number, since it is larger than the sum of its proper divisors (10140190).

12513890 is a wasteful number, since it uses less digits than its factorization.

12513890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7177.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 12513890 is about 3537.4977031795. The cubic root of 12513890 is about 232.1653720851.

The spelling of 12513890 in words is "twelve million, five hundred thirteen thousand, eight hundred ninety".