2621131 has 2 divisors, whose sum is σ = 2621132. Its totient is φ = 2621130.

The previous prime is 2621119. The next prime is 2621137. The reversal of 2621131 is 1311262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2621131 - 2⁹ = 2620619 is a prime.

It is a super-2 number, since 2×2621131² = 13740655438322, which contains 22 as substring.

2621131 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2621137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310565 + 1310566.

It is an arithmetic number, because the mean of its divisors is an integer number (1310566).

2^2621131 is an apocalyptic number.

2621131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2621131 is an equidigital number, since it uses as much as digits as its factorization.

2621131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 16.

The square root of 2621131 is about 1618.9907349951. The cubic root of 2621131 is about 137.8784023033.

Adding to 2621131 its reverse (1311262), we get a palindrome (3932393).

The spelling of 2621131 in words is "two million, six hundred twenty-one thousand, one hundred thirty-one".