31853042 has 8 divisors (see below), whose sum is σ = 51454956. Its totient is φ = 14701392.

The previous prime is 31853009. The next prime is 31853047. The reversal of 31853042 is 24035813.

It can be written as a sum of positive squares in 2 ways, for example, as 27888961 + 3964081 = 5281^2 + 1991^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 1225117 = 31853042 / (3 + 1 + 8 + 5 + 3 + 0 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (31853047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612533 + ... + 612584.

Almost surely, 2^31853042 is an apocalyptic number.

31853042 is a deficient number, since it is larger than the sum of its proper divisors (19601914).

31853042 is a wasteful number, since it uses less digits than its factorization.

31853042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225132.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 31853042 is about 5643.8499271331. The cubic root of 31853042 is about 316.9934618361.

Adding to 31853042 its reverse (24035813), we get a palindrome (55888855).

The spelling of 31853042 in words is "thirty-one million, eight hundred fifty-three thousand, forty-two".