31411142 has 32 divisors (see below), whose sum is σ = 57024000. Its totient is φ = 12676608.

The previous prime is 31411129. The next prime is 31411151. The reversal of 31411142 is 24111413.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31411142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69734 + ... + 70182.

It is an arithmetic number, because the mean of its divisors is an integer number (1782000).

Almost surely, 2^31411142 is an apocalyptic number.

31411142 is a deficient number, since it is larger than the sum of its proper divisors (25612858).

31411142 is a wasteful number, since it uses less digits than its factorization.

31411142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its digits is 96, while the sum is 17.

The square root of 31411142 is about 5604.5643898523. The cubic root of 31411142 is about 315.5207377349.

Adding to 31411142 its reverse (24111413), we get a palindrome (55522555).

The spelling of 31411142 in words is "thirty-one million, four hundred eleven thousand, one hundred forty-two".