2251541 has 4 divisors (see below), whose sum is σ = 2278752. Its totient is φ = 2224332.

The previous prime is 2251517. The next prime is 2251547. The reversal of 2251541 is 1451522.

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-2251541 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 (2251547) 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, 13481 + ... + 13646.

It is an arithmetic number, because the mean of its divisors is an integer number (569688).

2^2251541 is an apocalyptic number.

It is an amenable number.

2251541 is a deficient number, since it is larger than the sum of its proper divisors (27211).

2251541 is an equidigital number, since it uses as much as digits as its factorization.

2251541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27210.

The product of its digits is 400, while the sum is 20.

The square root of 2251541 is about 1500.5135787456. The cubic root of 2251541 is about 131.0669781612.

The spelling of 2251541 in words is "two million, two hundred fifty-one thousand, five hundred forty-one".