609157 has 4 divisors (see below), whose sum is σ = 612256. Its totient is φ = 606060.

The previous prime is 609149. The next prime is 609163. The reversal of 609157 is 751906.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 609157 - 2³ = 609149 is a prime.

It is a Duffinian number.

609157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1233 + ... + 1654.

It is an arithmetic number, because the mean of its divisors is an integer number (153064).

2⁶⁰⁹¹⁵⁷ is an apocalyptic number.

It is an amenable number.

609157 is a deficient number, since it is larger than the sum of its proper divisors (3099).

609157 is a wasteful number, since it uses less digits than its factorization.

609157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 609157 is about 780.4851055594. The cubic root of 609157 is about 84.7701750016.

The spelling of 609157 in words is "six hundred nine thousand, one hundred fifty-seven".