3149818 has 12 divisors (see below), whose sum is σ = 5496282. Its totient is φ = 1349880.

The previous prime is 3149813. The next prime is 3149821. The reversal of 3149818 is 8189413.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1750329 + 1399489 = 1323^2 + 1183^2 .

It is not an unprimeable number, because it can be changed into a prime (3149813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15973 + ... + 16168.

Almost surely, 2^3149818 is an apocalyptic number.

3149818 is a deficient number, since it is larger than the sum of its proper divisors (2346464).

3149818 is a wasteful number, since it uses less digits than its factorization.

3149818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32157 (or 32150 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 3149818 is about 1774.7726614978. The cubic root of 3149818 is about 146.5868976240.

The spelling of 3149818 in words is "three million, one hundred forty-nine thousand, eight hundred eighteen".