609923137 has 4 divisors (see below), whose sum is σ = 624107440. Its totient is φ = 595738836.

The previous prime is 609923129. The next prime is 609923147. The reversal of 609923137 is 731329906.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 731329906 = 2 ⋅365664953.

It is a cyclic number.

It is not a de Polignac number, because 609923137 - 2³ = 609923129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 609923137.

It is not an unprimeable number, because it can be changed into a prime (609923107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7092087 + ... + 7092172.

It is an arithmetic number, because the mean of its divisors is an integer number (156026860).

Almost surely, 2^609923137 is an apocalyptic number.

It is an amenable number.

609923137 is a deficient number, since it is larger than the sum of its proper divisors (14184303).

609923137 is a wasteful number, since it uses less digits than its factorization.

609923137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14184302.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 609923137 is about 24696.6219754848. The cubic root of 609923137 is about 848.0569860727.

The spelling of 609923137 in words is "six hundred nine million, nine hundred twenty-three thousand, one hundred thirty-seven".