1602541613 has 8 divisors (see below), whose sum is σ = 1617635448. Its totient is φ = 1587518464.

The previous prime is 1602541609. The next prime is 1602541631. The reversal of 1602541613 is 3161452061.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 432764809 + 1169776804 = 20803^2 + 34202^2 .

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 1602541613 - 2² = 1602541609 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 (1602541663) 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, 28445 + ... + 63357.

It is an arithmetic number, because the mean of its divisors is an integer number (202204431).

Almost surely, 2^1602541613 is an apocalyptic number.

It is an amenable number.

1602541613 is a deficient number, since it is larger than the sum of its proper divisors (15093835).

1602541613 is a wasteful number, since it uses less digits than its factorization.

1602541613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35343.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1602541613 is about 40031.7575557207. The cubic root of 1602541613 is about 1170.2260777725.

Adding to 1602541613 its reverse (3161452061), we get a palindrome (4763993674).

The spelling of 1602541613 in words is "one billion, six hundred two million, five hundred forty-one thousand, six hundred thirteen".