2565154 has 4 divisors (see below), whose sum is σ = 3847734. Its totient is φ = 1282576.

The previous prime is 2565151. The next prime is 2565161. The reversal of 2565154 is 4515652.

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., 2024929 + 540225 = 1423^2 + 735^2 .

It is not an unprimeable number, because it can be changed into a prime (2565151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641287 + ... + 641290.

2^2565154 is an apocalyptic number.

2565154 is a deficient number, since it is larger than the sum of its proper divisors (1282580).

2565154 is a wasteful number, since it uses less digits than its factorization.

2565154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282579.

The product of its digits is 6000, while the sum is 28.

The square root of 2565154 is about 1601.6098151547. The cubic root of 2565154 is about 136.8898185273.

The spelling of 2565154 in words is "two million, five hundred sixty-five thousand, one hundred fifty-four".