12531001 has 8 divisors (see below), whose sum is σ = 14347584. Its totient is φ = 10721040.

The previous prime is 12530993. The next prime is 12531007. The reversal of 12531001 is 10013521.

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

It is a cyclic number.

It is not a de Polignac number, because 12531001 - 2³ = 12530993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12531007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3471 + ... + 6091.

It is an arithmetic number, because the mean of its divisors is an integer number (1793448).

Almost surely, 2^12531001 is an apocalyptic number.

It is an amenable number.

12531001 is a deficient number, since it is larger than the sum of its proper divisors (1816583).

12531001 is an equidigital number, since it uses as much as digits as its factorization.

12531001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 12531001 is about 3539.9153944692. The cubic root of 12531001 is about 232.2711418179.

Adding to 12531001 its reverse (10013521), we get a palindrome (22544522).

The spelling of 12531001 in words is "twelve million, five hundred thirty-one thousand, one".