1031542 has 4 divisors (see below), whose sum is σ = 1547316. Its totient is φ = 515770.

The previous prime is 1031533. The next prime is 1031549. The reversal of 1031542 is 2451301.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257884 + ... + 257887.

It is an arithmetic number, because the mean of its divisors is an integer number (386829).

2^1031542 is an apocalyptic number.

1031542 is a deficient number, since it is larger than the sum of its proper divisors (515774).

1031542 is an equidigital number, since it uses as much as digits as its factorization.

1031542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515773.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1031542 is about 1015.6485612652. The cubic root of 1031542 is about 101.0405353093.

Adding to 1031542 its reverse (2451301), we get a palindrome (3482843).

The spelling of 1031542 in words is "one million, thirty-one thousand, five hundred forty-two".