13402901 has 8 divisors (see below), whose sum is σ = 13906200. Its totient is φ = 12902400.

The previous prime is 13402897. The next prime is 13402913. The reversal of 13402901 is 10920431.

It can be written as a sum of positive squares in 4 ways, for example, as 3511876 + 9891025 = 1874^2 + 3145^2 .

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 13402901 - 2² = 13402897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402601) 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, 17045 + ... + 17813.

It is an arithmetic number, because the mean of its divisors is an integer number (1738275).

Almost surely, 2^13402901 is an apocalyptic number.

It is an amenable number.

13402901 is a deficient number, since it is larger than the sum of its proper divisors (503299).

13402901 is an equidigital number, since it uses as much as digits as its factorization.

13402901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 13402901 is about 3660.9972685049. The cubic root of 13402901 is about 237.5379130610.

Adding to 13402901 its sum of digits (20), we get a square (13402921 = 3661²).

The spelling of 13402901 in words is "thirteen million, four hundred two thousand, nine hundred one".