12451401 has 20 divisors (see below), whose sum is σ = 18695952. Its totient is φ = 8258328.

The previous prime is 12451399. The next prime is 12451409. The reversal of 12451401 is 10415421.

It is not a de Polignac number, because 12451401 - 2¹ = 12451399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12451409) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27886 + ... + 28328.

Almost surely, 2^12451401 is an apocalyptic number.

It is an amenable number.

12451401 is a deficient number, since it is larger than the sum of its proper divisors (6244551).

12451401 is an equidigital number, since it uses as much as digits as its factorization.

12451401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 12451401 is about 3528.6542760662. The cubic root of 12451401 is about 231.7782822806.

Adding to 12451401 its reverse (10415421), we get a palindrome (22866822).

The spelling of 12451401 in words is "twelve million, four hundred fifty-one thousand, four hundred one".