3215142 has 96 divisors (see below), whose sum is σ = 8985600. Its totient is φ = 808704.

The previous prime is 3215141. The next prime is 3215183. The reversal of 3215142 is 2415123.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40659 + ... + 40737.

It is an arithmetic number, because the mean of its divisors is an integer number (93600).

Almost surely, 2^3215142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3215142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4492800).

3215142 is an abundant number, since it is smaller than the sum of its proper divisors (5770458).

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

3215142 is a wasteful number, since it uses less digits than its factorization.

3215142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 127 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 3215142 is about 1793.0817047753. The cubic root of 3215142 is about 147.5933259811.

The spelling of 3215142 in words is "three million, two hundred fifteen thousand, one hundred forty-two".