654430453 has 4 divisors (see below), whose sum is σ = 692926380. Its totient is φ = 615934528.

The previous prime is 654430411. The next prime is 654430457. The reversal of 654430453 is 354034456.

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 540004644 + 114425809 = 23238^2 + 10697^2 .

It is a cyclic number.

It is not a de Polignac number, because 654430453 - 2¹³ = 654422261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654430457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19247938 + ... + 19247971.

It is an arithmetic number, because the mean of its divisors is an integer number (173231595).

Almost surely, 2^654430453 is an apocalyptic number.

It is an amenable number.

654430453 is a deficient number, since it is larger than the sum of its proper divisors (38495927).

654430453 is a wasteful number, since it uses less digits than its factorization.

654430453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38495926.

The product of its (nonzero) digits is 86400, while the sum is 34.

The square root of 654430453 is about 25581.8383428557. The cubic root of 654430453 is about 868.2027693690.

The spelling of 654430453 in words is "six hundred fifty-four million, four hundred thirty thousand, four hundred fifty-three".