1681034148 has 144 divisors (see below), whose sum is σ = 4649508864. Its totient is φ = 530284320.

The previous prime is 1681034129. The next prime is 1681034167. The reversal of 1681034148 is 8414301861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1681034129) and next prime (1681034167).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1415611 + ... + 1416797.

It is an arithmetic number, because the mean of its divisors is an integer number (32288256).

Almost surely, 2^1681034148 is an apocalyptic number.

1681034148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1681034148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2324754432).

1681034148 is an abundant number, since it is smaller than the sum of its proper divisors (2968474716).

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

1681034148 is a wasteful number, since it uses less digits than its factorization.

1681034148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1681034148 is about 41000.4164369095. The cubic root of 1681034148 is about 1189.0282649241.

The spelling of 1681034148 in words is "one billion, six hundred eighty-one million, thirty-four thousand, one hundred forty-eight".