609830145 has 24 divisors (see below), whose sum is σ = 1060201896. Its totient is φ = 324269568.

The previous prime is 609830141. The next prime is 609830149. The reversal of 609830145 is 541038906.

609830145 is a `hidden beast` number, since 609 + 8 + 3 + 0 + 1 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (609830141) and next prime (609830149).

It can be written as a sum of positive squares in 4 ways, for example, as 18173169 + 591656976 = 4263^2 + 24324^2 .

It is not a de Polignac number, because 609830145 - 2² = 609830141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (609830141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4942 + ... + 35271.

It is an arithmetic number, because the mean of its divisors is an integer number (44175079).

Almost surely, 2^609830145 is an apocalyptic number.

It is an amenable number.

609830145 is a deficient number, since it is larger than the sum of its proper divisors (450371751).

609830145 is a wasteful number, since it uses less digits than its factorization.

609830145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40561 (or 40558 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 609830145 is about 24694.7392170883. The cubic root of 609830145 is about 848.0138841807.

The spelling of 609830145 in words is "six hundred nine million, eight hundred thirty thousand, one hundred forty-five".