2631401 has 2 divisors, whose sum is σ = 2631402. Its totient is φ = 2631400.

The previous prime is 2631347. The next prime is 2631427. The reversal of 2631401 is 1041362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2247001 + 384400 = 1499^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 2631401 - 2⁶ = 2631337 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2631401.

It is not a weakly prime, because it can be changed into another prime (2631701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315700 + 1315701.

It is an arithmetic number, because the mean of its divisors is an integer number (1315701).

2^2631401 is an apocalyptic number.

It is an amenable number.

2631401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2631401 is an equidigital number, since it uses as much as digits as its factorization.

2631401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2631401 is about 1622.1593633179. The cubic root of 2631401 is about 138.0582439852.

Adding to 2631401 its reverse (1041362), we get a palindrome (3672763).

The spelling of 2631401 in words is "two million, six hundred thirty-one thousand, four hundred one".