2373561 has 6 divisors (see below), whose sum is σ = 3428490. Its totient is φ = 1582368.

The previous prime is 2373533. The next prime is 2373583. The reversal of 2373561 is 1653732.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2013561 + 360000 = 1419^2 + 600^2 .

It is not a de Polignac number, because 2373561 - 2⁵ = 2373529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2373061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131856 + ... + 131873.

It is an arithmetic number, because the mean of its divisors is an integer number (571415).

2^2373561 is an apocalyptic number.

It is an amenable number.

2373561 is a deficient number, since it is larger than the sum of its proper divisors (1054929).

2373561 is a wasteful number, since it uses less digits than its factorization.

2373561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263735 (or 263732 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 2373561 is about 1540.6365567518. The cubic root of 2373561 is about 133.3931308168.

The spelling of 2373561 in words is "two million, three hundred seventy-three thousand, five hundred sixty-one".