1001542 has 8 divisors (see below), whose sum is σ = 1506600. Its totient is φ = 499344.

The previous prime is 1001531. The next prime is 1001549. The reversal of 1001542 is 2451001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834 + ... + 1642.

It is an arithmetic number, because the mean of its divisors is an integer number (188325).

2^1001542 is an apocalyptic number.

1001542 is a deficient number, since it is larger than the sum of its proper divisors (505058).

1001542 is an equidigital number, since it uses as much as digits as its factorization.

1001542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1001542 is about 1000.7707030084. The cubic root of 1001542 is about 100.0513736030.

Adding to 1001542 its reverse (2451001), we get a palindrome (3452543).

The spelling of 1001542 in words is "one million, one thousand, five hundred forty-two".