31793142 has 16 divisors (see below), whose sum is σ = 63681840. Its totient is φ = 10581792.

The previous prime is 31793141. The next prime is 31793147. The reversal of 31793142 is 24139713.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31793141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784 + ... + 8012.

It is an arithmetic number, because the mean of its divisors is an integer number (3980115).

Almost surely, 2^31793142 is an apocalyptic number.

31793142 is an abundant number, since it is smaller than the sum of its proper divisors (31888698).

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

31793142 is a wasteful number, since it uses less digits than its factorization.

31793142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7967.

The product of its digits is 4536, while the sum is 30.

The square root of 31793142 is about 5638.5407686741. The cubic root of 31793142 is about 316.7946339069.

The spelling of 31793142 in words is "thirty-one million, seven hundred ninety-three thousand, one hundred forty-two".