1609542502 has 4 divisors (see below), whose sum is σ = 2414313756. Its totient is φ = 804771250.

The previous prime is 1609542499. The next prime is 1609542509. The reversal of 1609542502 is 2052459061.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1609542509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402385624 + ... + 402385627.

It is an arithmetic number, because the mean of its divisors is an integer number (603578439).

Almost surely, 2^1609542502 is an apocalyptic number.

1609542502 is a deficient number, since it is larger than the sum of its proper divisors (804771254).

1609542502 is an equidigital number, since it uses as much as digits as its factorization.

1609542502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804771253.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1609542502 is about 40119.1039531044. The cubic root of 1609542502 is about 1171.9276917458.

The spelling of 1609542502 in words is "one billion, six hundred nine million, five hundred forty-two thousand, five hundred two".