12533630 has 32 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 4868640.

The previous prime is 12533629. The next prime is 12533657. The reversal of 12533630 is 3633521.

12533630 = T₂₃₁ + T₂₃₂ + ... + T₄₄₃.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12533596 and 12533605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90101 + ... + 90239.

It is an arithmetic number, because the mean of its divisors is an integer number (725760).

Almost surely, 2^12533630 is an apocalyptic number.

12533630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12533630 is a deficient number, since it is larger than the sum of its proper divisors (10690690).

12533630 is a wasteful number, since it uses less digits than its factorization.

12533630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 12533630 is about 3540.2867115532. The cubic root of 12533630 is about 232.2873841525.

The spelling of 12533630 in words is "twelve million, five hundred thirty-three thousand, six hundred thirty".