2251594 has 4 divisors (see below), whose sum is σ = 3377394. Its totient is φ = 1125796.

The previous prime is 2251591. The next prime is 2251603. The reversal of 2251594 is 4951522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1996569 + 255025 = 1413^2 + 505^2 .

It is not an unprimeable number, because it can be changed into a prime (2251591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562897 + ... + 562900.

2^2251594 is an apocalyptic number.

2251594 is a deficient number, since it is larger than the sum of its proper divisors (1125800).

2251594 is a wasteful number, since it uses less digits than its factorization.

2251594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125799.

The product of its digits is 3600, while the sum is 28.

The square root of 2251594 is about 1500.5312392616. The cubic root of 2251594 is about 131.0680065673.

The spelling of 2251594 in words is "two million, two hundred fifty-one thousand, five hundred ninety-four".