1525542 has 8 divisors (see below), whose sum is σ = 3051096. Its totient is φ = 508512.

The previous prime is 1525507. The next prime is 1525561. The reversal of 1525542 is 2455251.

It is a happy number.

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

1525542 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127123 + ... + 127134.

It is an arithmetic number, because the mean of its divisors is an integer number (381387).

2^1525542 is an apocalyptic number.

1525542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1525542 is a wasteful number, since it uses less digits than its factorization.

1525542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254262.

The product of its digits is 2000, while the sum is 24.

The square root of 1525542 is about 1235.1283334132. The cubic root of 1525542 is about 115.1175106329.

The spelling of 1525542 in words is "one million, five hundred twenty-five thousand, five hundred forty-two".