654294145 has 4 divisors (see below), whose sum is σ = 785152980. Its totient is φ = 523435312.

The previous prime is 654294139. The next prime is 654294161. The reversal of 654294145 is 541492456.

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 452540529 + 201753616 = 21273^2 + 14204^2 .

It is a cyclic number.

It is not a de Polignac number, because 654294145 - 2¹⁷ = 654163073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 654294098 and 654294107.

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, 65429410 + ... + 65429419.

It is an arithmetic number, because the mean of its divisors is an integer number (196288245).

Almost surely, 2^654294145 is an apocalyptic number.

It is an amenable number.

654294145 is a deficient number, since it is larger than the sum of its proper divisors (130858835).

654294145 is a wasteful number, since it uses less digits than its factorization.

654294145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130858834.

The product of its digits is 172800, while the sum is 40.

The square root of 654294145 is about 25579.1740484324. The cubic root of 654294145 is about 868.1424873330.

The spelling of 654294145 in words is "six hundred fifty-four million, two hundred ninety-four thousand, one hundred forty-five".