12533990 has 16 divisors (see below), whose sum is σ = 25784352. Its totient is φ = 4297344.

The previous prime is 12533957. The next prime is 12534001. The reversal of 12533990 is 9933521.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 89459 + ... + 89598.

It is an arithmetic number, because the mean of its divisors is an integer number (1611522).

Almost surely, 2^12533990 is an apocalyptic number.

12533990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12533990 is an abundant number, since it is smaller than the sum of its proper divisors (13250362).

12533990 is a wasteful number, since it uses less digits than its factorization.

12533990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179071.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 12533990 is about 3540.3375545278. The cubic root of 12533990 is about 232.2896081067.

The spelling of 12533990 in words is "twelve million, five hundred thirty-three thousand, nine hundred ninety".