2620131 has 16 divisors (see below), whose sum is σ = 3611520. Its totient is φ = 1688960.

The previous prime is 2620129. The next prime is 2620139. The reversal of 2620131 is 1310262.

It is a cyclic number.

It is not a de Polignac number, because 2620131 - 2¹ = 2620129 is a prime.

It is a super-2 number, since 2×2620131² = 13730172914322, which contains 22 as substring.

2620131 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2620131.

It is not an unprimeable number, because it can be changed into a prime (2620139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19936 + ... + 20066.

It is an arithmetic number, because the mean of its divisors is an integer number (225720).

2^2620131 is an apocalyptic number.

2620131 is a deficient number, since it is larger than the sum of its proper divisors (991389).

2620131 is a wasteful number, since it uses less digits than its factorization.

2620131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2620131 is about 1618.6818711532. The cubic root of 2620131 is about 137.8608658607.

Adding to 2620131 its reverse (1310262), we get a palindrome (3930393).

The spelling of 2620131 in words is "two million, six hundred twenty thousand, one hundred thirty-one".