1613879149 has 8 divisors (see below), whose sum is σ = 1625012928. Its totient is φ = 1602763200.

The previous prime is 1613879147. The next prime is 1613879213. The reversal of 1613879149 is 9419783161.

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 1613879149 - 2¹ = 1613879147 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 (1613879143) 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, 212874 + ... + 220324.

It is an arithmetic number, because the mean of its divisors is an integer number (203126616).

Almost surely, 2^1613879149 is an apocalyptic number.

It is an amenable number.

1613879149 is a deficient number, since it is larger than the sum of its proper divisors (11133779).

1613879149 is a wasteful number, since it uses less digits than its factorization.

1613879149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8915.

The product of its digits is 326592, while the sum is 49.

The square root of 1613879149 is about 40173.1147535264. The cubic root of 1613879149 is about 1172.9792698818.

The spelling of 1613879149 in words is "one billion, six hundred thirteen million, eight hundred seventy-nine thousand, one hundred forty-nine".