654256345 has 8 divisors (see below), whose sum is σ = 785588040. Its totient is φ = 523084800.

The previous prime is 654256331. The next prime is 654256357. The reversal of 654256345 is 543652456.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 289408144 + 364848201 = 17012^2 + 19101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 654256345 - 2⁷ = 654256217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 654256298 and 654256307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30856 + ... + 47545.

It is an arithmetic number, because the mean of its divisors is an integer number (98198505).

Almost surely, 2^654256345 is an apocalyptic number.

It is an amenable number.

654256345 is a deficient number, since it is larger than the sum of its proper divisors (131331695).

654256345 is a wasteful number, since it uses less digits than its factorization.

654256345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80075.

The product of its digits is 432000, while the sum is 40.

The square root of 654256345 is about 25578.4351554195. The cubic root of 654256345 is about 868.1257688493.

The spelling of 654256345 in words is "six hundred fifty-four million, two hundred fifty-six thousand, three hundred forty-five".