3157542 has 48 divisors (see below), whose sum is σ = 7272720. Its totient is φ = 1026432.

The previous prime is 3157541. The next prime is 3157547. The reversal of 3157542 is 2457513.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3157541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35434 + ... + 35522.

It is an arithmetic number, because the mean of its divisors is an integer number (151515).

Almost surely, 2^3157542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3157542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3636360).

3157542 is an abundant number, since it is smaller than the sum of its proper divisors (4115178).

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

3157542 is an equidigital number, since it uses as much as digits as its factorization.

3157542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 167 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 3157542 is about 1776.9473824512. The cubic root of 3157542 is about 146.7066201988.

The spelling of 3157542 in words is "three million, one hundred fifty-seven thousand, five hundred forty-two".