1681316130 has 64 divisors (see below), whose sum is σ = 4350487680. Its totient is φ = 413392896.

The previous prime is 1681316089. The next prime is 1681316159. The reversal of 1681316130 is 316131861.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447801 + ... + 451539.

It is an arithmetic number, because the mean of its divisors is an integer number (67976370).

Almost surely, 2^1681316130 is an apocalyptic number.

1681316130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1681316130 is an abundant number, since it is smaller than the sum of its proper divisors (2669171550).

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

1681316130 is a wasteful number, since it uses less digits than its factorization.

1681316130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4915.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1681316130 is about 41003.8550626645. The cubic root of 1681316130 is about 1189.0947449979.

Adding to 1681316130 its reverse (316131861), we get a palindrome (1997447991).

The spelling of 1681316130 in words is "one billion, six hundred eighty-one million, three hundred sixteen thousand, one hundred thirty".