1609005157 has 8 divisors (see below), whose sum is σ = 1616090112. Its totient is φ = 1601930400.

The previous prime is 1609005149. The next prime is 1609005161. The reversal of 1609005157 is 7515009061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1609005157 - 2³ = 1609005149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1609005197) 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, 597468 + ... + 600154.

It is an arithmetic number, because the mean of its divisors is an integer number (202011264).

Almost surely, 2^1609005157 is an apocalyptic number.

It is an amenable number.

1609005157 is a deficient number, since it is larger than the sum of its proper divisors (7084955).

1609005157 is a wasteful number, since it uses less digits than its factorization.

1609005157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5099.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 1609005157 is about 40112.4065221722. The cubic root of 1609005157 is about 1171.7972613956.

The spelling of 1609005157 in words is "one billion, six hundred nine million, five thousand, one hundred fifty-seven".