654135445 has 4 divisors (see below), whose sum is σ = 784962540. Its totient is φ = 523308352.

The previous prime is 654135437. The next prime is 654135481. The reversal of 654135445 is 544531456.

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

It can be written as a sum of positive squares in 2 ways, for example, as 468549316 + 185586129 = 21646^2 + 13623^2 .

It is a cyclic number.

It is not a de Polignac number, because 654135445 - 2³ = 654135437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65413540 + ... + 65413549.

It is an arithmetic number, because the mean of its divisors is an integer number (196240635).

Almost surely, 2^654135445 is an apocalyptic number.

It is an amenable number.

654135445 is a deficient number, since it is larger than the sum of its proper divisors (130827095).

654135445 is a wasteful number, since it uses less digits than its factorization.

654135445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130827094.

The product of its digits is 144000, while the sum is 37.

The square root of 654135445 is about 25576.0717273001. The cubic root of 654135445 is about 868.0722919148.

The spelling of 654135445 in words is "six hundred fifty-four million, one hundred thirty-five thousand, four hundred forty-five".