1522542 has 16 divisors (see below), whose sum is σ = 3480192. Its totient is φ = 435000.

The previous prime is 1522541. The next prime is 1522553. The reversal of 1522542 is 2452251.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18084 + ... + 18167.

It is an arithmetic number, because the mean of its divisors is an integer number (217512).

2^1522542 is an apocalyptic number.

1522542 is an abundant number, since it is smaller than the sum of its proper divisors (1957650).

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

1522542 is a wasteful number, since it uses less digits than its factorization.

1522542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36263.

The product of its digits is 800, while the sum is 21.

The square root of 1522542 is about 1233.9132870668. The cubic root of 1522542 is about 115.0420010414.

Adding to 1522542 its reverse (2452251), we get a palindrome (3974793).

The spelling of 1522542 in words is "one million, five hundred twenty-two thousand, five hundred forty-two".