609813143 has 12 divisors (see below), whose sum is σ = 627143328. Its totient is φ = 592945920.

The previous prime is 609813097. The next prime is 609813173. The reversal of 609813143 is 341318906.

It is not a de Polignac number, because 609813143 - 2⁶ = 609813079 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609813173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 500471 + ... + 501687.

It is an arithmetic number, because the mean of its divisors is an integer number (52261944).

Almost surely, 2^609813143 is an apocalyptic number.

609813143 is a deficient number, since it is larger than the sum of its proper divisors (17330185).

609813143 is a wasteful number, since it uses less digits than its factorization.

609813143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 609813143 is about 24694.3949713290. The cubic root of 609813143 is about 848.0060032616.

The spelling of 609813143 in words is "six hundred nine million, eight hundred thirteen thousand, one hundred forty-three".