1613233530 has 128 divisors (see below), whose sum is σ = 4570421760. Its totient is φ = 403522560.

The previous prime is 1613233493. The next prime is 1613233679. The reversal of 1613233530 is 353323161.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1613233494 and 1613233503.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2556315 + ... + 2556945.

It is an arithmetic number, because the mean of its divisors is an integer number (35706420).

Almost surely, 2^1613233530 is an apocalyptic number.

1613233530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1613233530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2285210880).

1613233530 is an abundant number, since it is smaller than the sum of its proper divisors (2957188230).

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

1613233530 is a wasteful number, since it uses less digits than its factorization.

1613233530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1215 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 1613233530 is about 40165.0784886573. The cubic root of 1613233530 is about 1172.8228354694.

Adding to 1613233530 its reverse (353323161), we get a palindrome (1966556691).

The spelling of 1613233530 in words is "one billion, six hundred thirteen million, two hundred thirty-three thousand, five hundred thirty".