2425181 has 4 divisors (see below), whose sum is σ = 2645664. Its totient is φ = 2204700.

The previous prime is 2425139. The next prime is 2425193. The reversal of 2425181 is 1815242.

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 not a de Polignac number, because 2425181 - 2⁶ = 2425117 is a prime.

It is a super-2 number, since 2×2425181² = 11763005765522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2425081) 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, 110225 + ... + 110246.

It is an arithmetic number, because the mean of its divisors is an integer number (661416).

2^2425181 is an apocalyptic number.

It is an amenable number.

2425181 is a deficient number, since it is larger than the sum of its proper divisors (220483).

2425181 is a wasteful number, since it uses less digits than its factorization.

2425181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220482.

The product of its digits is 640, while the sum is 23.

The square root of 2425181 is about 1557.2992647529. The cubic root of 2425181 is about 134.3532116106.

The spelling of 2425181 in words is "two million, four hundred twenty-five thousand, one hundred eighty-one".