609148943 has 4 divisors (see below), whose sum is σ = 656006568. Its totient is φ = 562291320.

The previous prime is 609148933. The next prime is 609148957. The reversal of 609148943 is 349841906.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 609148943 - 2⁴ = 609148927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 609148894 and 609148903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609148933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23428793 + ... + 23428818.

It is an arithmetic number, because the mean of its divisors is an integer number (164001642).

Almost surely, 2^609148943 is an apocalyptic number.

609148943 is a deficient number, since it is larger than the sum of its proper divisors (46857625).

609148943 is a wasteful number, since it uses less digits than its factorization.

609148943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46857624.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 609148943 is about 24680.9429114854. The cubic root of 609148943 is about 847.6980126305.

The spelling of 609148943 in words is "six hundred nine million, one hundred forty-eight thousand, nine hundred forty-three".