1254564 has 18 divisors (see below), whose sum is σ = 3171350. Its totient is φ = 418176.

The previous prime is 1254557. The next prime is 1254577. The reversal of 1254564 is 4654521.

It can be written as a sum of positive squares in only one way, i.e., 736164 + 518400 = 858^2 + 720^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17389 + ... + 17460.

2^1254564 is an apocalyptic number.

It is an amenable number.

1254564 is an abundant number, since it is smaller than the sum of its proper divisors (1916786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1254564 is a wasteful number, since it uses less digits than its factorization.

1254564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34859 (or 34854 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 1254564 is about 1120.0732118929. The cubic root of 1254564 is about 107.8526797939.

The spelling of 1254564 in words is "one million, two hundred fifty-four thousand, five hundred sixty-four".