1613129056 has 48 divisors (see below), whose sum is σ = 3959504640. Its totient is φ = 628490880.

The previous prime is 1613129053. The next prime is 1613129069. The reversal of 1613129056 is 6509213161.

It is a super-2 number, since 2×1613129056² = 5204370702622902272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613129053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324876 + ... + 329803.

It is an arithmetic number, because the mean of its divisors is an integer number (82489680).

Almost surely, 2^1613129056 is an apocalyptic number.

1613129056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1613129056 is an abundant number, since it is smaller than the sum of its proper divisors (2346375584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1613129056 is a wasteful number, since it uses less digits than its factorization.

1613129056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654707 (or 654699 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 1613129056 is about 40163.7779099526. Note that the first 3 decimals coincide. The cubic root of 1613129056 is about 1172.7975173457.

The spelling of 1613129056 in words is "one billion, six hundred thirteen million, one hundred twenty-nine thousand, fifty-six".