2531461 has 4 divisors (see below), whose sum is σ = 2569312. Its totient is φ = 2493612.

The previous prime is 2531443. The next prime is 2531471. The reversal of 2531461 is 1641352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2531461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18825 + ... + 18958.

It is an arithmetic number, because the mean of its divisors is an integer number (642328).

2^2531461 is an apocalyptic number.

It is an amenable number.

2531461 is a deficient number, since it is larger than the sum of its proper divisors (37851).

2531461 is an equidigital number, since it uses as much as digits as its factorization.

2531461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37850.

The product of its digits is 720, while the sum is 22.

The square root of 2531461 is about 1591.0565671905. The cubic root of 2531461 is about 136.2878311468.

It can be divided in two parts, 2531 and 461, that added together give a palindrome (2992).

The spelling of 2531461 in words is "two million, five hundred thirty-one thousand, four hundred sixty-one".