1613406613 has 8 divisors (see below), whose sum is σ = 1985731328. Its totient is φ = 1276541424.

The previous prime is 1613406593. The next prime is 1613406637. The reversal of 1613406613 is 3166043161.

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 1613406613 - 2⁵ = 1613406581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613406673) 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, 8864781 + ... + 8864962.

It is an arithmetic number, because the mean of its divisors is an integer number (248216416).

Almost surely, 2^1613406613 is an apocalyptic number.

1613406613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1613406613 is a deficient number, since it is larger than the sum of its proper divisors (372324715).

1613406613 is a wasteful number, since it uses less digits than its factorization.

1613406613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17729763.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 1613406613 is about 40167.2330762277. The cubic root of 1613406613 is about 1172.8647778234.

Adding to 1613406613 its reverse (3166043161), we get a palindrome (4779449774).

The spelling of 1613406613 in words is "one billion, six hundred thirteen million, four hundred six thousand, six hundred thirteen".