2031542 has 8 divisors (see below), whose sum is σ = 3075600. Its totient is φ = 1006344.

The previous prime is 2031541. The next prime is 2031563. The reversal of 2031542 is 2451302.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2031542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031541) 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 3 ways as a sum of consecutive naturals, for example, 4442 + ... + 4877.

It is an arithmetic number, because the mean of its divisors is an integer number (384450).

2^2031542 is an apocalyptic number.

2031542 is a deficient number, since it is larger than the sum of its proper divisors (1044058).

2031542 is a wasteful number, since it uses less digits than its factorization.

2031542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9430.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2031542 is about 1425.3217180693. The cubic root of 2031542 is about 126.6509937518.

Subtracting from 2031542 its product of nonzero digits (240), we obtain a palindrome (2031302).

Adding to 2031542 its reverse (2451302), we get a palindrome (4482844).

The spelling of 2031542 in words is "two million, thirty-one thousand, five hundred forty-two".