31437142 has 16 divisors (see below), whose sum is σ = 51628752. Its totient is φ = 14237920.

The previous prime is 31437103. The next prime is 31437157. The reversal of 31437142 is 24173413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4008 + ... + 8884.

It is an arithmetic number, because the mean of its divisors is an integer number (3226797).

Almost surely, 2^31437142 is an apocalyptic number.

31437142 is a deficient number, since it is larger than the sum of its proper divisors (20191610).

31437142 is a wasteful number, since it uses less digits than its factorization.

31437142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183.

The product of its digits is 2016, while the sum is 25.

The square root of 31437142 is about 5606.8834480485. The cubic root of 31437142 is about 315.6077692387.

It can be divided in two parts, 314371 and 42, that added together give a palindrome (314413).

The spelling of 31437142 in words is "thirty-one million, four hundred thirty-seven thousand, one hundred forty-two".