654670453 has 4 divisors (see below), whose sum is σ = 656182828. Its totient is φ = 653158080.

The previous prime is 654670451. The next prime is 654670477. The reversal of 654670453 is 354076456.

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 156800484 + 497869969 = 12522^2 + 22313^2 .

It is a cyclic number.

It is not a de Polignac number, because 654670453 - 2¹ = 654670451 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 (654670451) 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, 755538 + ... + 756403.

It is an arithmetic number, because the mean of its divisors is an integer number (164045707).

Almost surely, 2^654670453 is an apocalyptic number.

It is an amenable number.

654670453 is a deficient number, since it is larger than the sum of its proper divisors (1512375).

654670453 is a wasteful number, since it uses less digits than its factorization.

654670453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512374.

The product of its (nonzero) digits is 302400, while the sum is 40.

The square root of 654670453 is about 25586.5287407260. The cubic root of 654670453 is about 868.3088887165.

The spelling of 654670453 in words is "six hundred fifty-four million, six hundred seventy thousand, four hundred fifty-three".