12902001 has 16 divisors (see below), whose sum is σ = 19837824. Its totient is φ = 7305984.

The previous prime is 12901981. The next prime is 12902033. The reversal of 12902001 is 10020921.

It is a happy number.

It is not a de Polignac number, because 12902001 - 2¹³ = 12893809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12902041) 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 15 ways as a sum of consecutive naturals, for example, 346 + ... + 5091.

It is an arithmetic number, because the mean of its divisors is an integer number (1239864).

Almost surely, 2^12902001 is an apocalyptic number.

It is an amenable number.

12902001 is a deficient number, since it is larger than the sum of its proper divisors (6935823).

12902001 is a wasteful number, since it uses less digits than its factorization.

12902001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 12902001 is about 3591.9355506468. The cubic root of 12902001 is about 234.5411356832.

Adding to 12902001 its reverse (10020921), we get a palindrome (22922922).

The spelling of 12902001 in words is "twelve million, nine hundred two thousand, one".