609149943 has 8 divisors (see below), whose sum is σ = 902444400. Its totient is φ = 406099944.

The previous prime is 609149941. The next prime is 609149953. The reversal of 609149943 is 349941906.

It is not a de Polignac number, because 609149943 - 2¹ = 609149941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609149941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11280528 + ... + 11280581.

It is an arithmetic number, because the mean of its divisors is an integer number (112805550).

Almost surely, 2^609149943 is an apocalyptic number.

609149943 is a deficient number, since it is larger than the sum of its proper divisors (293294457).

609149943 is a wasteful number, since it uses less digits than its factorization.

609149943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22561118 (or 22561112 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 609149943 is about 24680.9631700224. The cubic root of 609149943 is about 847.6984765004.

The spelling of 609149943 in words is "six hundred nine million, one hundred forty-nine thousand, nine hundred forty-three".