3149112816 has 120 divisors (see below), whose sum is σ = 9170913024. Its totient is φ = 1046105280.

The previous prime is 3149112803. The next prime is 3149112817. The reversal of 3149112816 is 6182119413.

3149112816 is a `hidden beast` number, since 31 + 491 + 128 + 16 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3149112817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1285705 + ... + 1288151.

Almost surely, 2^3149112816 is an apocalyptic number.

3149112816 is a gapful number since it is divisible by the number (36) 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 3149112816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4585456512).

3149112816 is an abundant number, since it is smaller than the sum of its proper divisors (6021800208).

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

3149112816 is a wasteful number, since it uses less digits than its factorization.

3149112816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801 (or 2783 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 3149112816 is about 56116.9565817677. The cubic root of 3149112816 is about 1465.7595747339.

The spelling of 3149112816 in words is "three billion, one hundred forty-nine million, one hundred twelve thousand, eight hundred sixteen".