3161142 has 24 divisors (see below), whose sum is σ = 6963840. Its totient is φ = 1036080.

The previous prime is 3161131. The next prime is 3161149. The reversal of 3161142 is 2411613.

It is a happy number.

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 (3161149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342 + ... + 2537.

It is an arithmetic number, because the mean of its divisors is an integer number (290160).

Almost surely, 2^3161142 is an apocalyptic number.

3161142 is an abundant number, since it is smaller than the sum of its proper divisors (3802698).

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

3161142 is a wasteful number, since it uses less digits than its factorization.

3161142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948 (or 2945 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 3161142 is about 1777.9600670431. The cubic root of 3161142 is about 146.7623537665.

Adding to 3161142 its reverse (2411613), we get a palindrome (5572755).

The spelling of 3161142 in words is "three million, one hundred sixty-one thousand, one hundred forty-two".