1521542 has 32 divisors (see below), whose sum is σ = 2709504. Its totient is φ = 633600.

The previous prime is 1521497. The next prime is 1521547. The reversal of 1521542 is 2451251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15638 + ... + 15734.

It is an arithmetic number, because the mean of its divisors is an integer number (84672).

2^1521542 is an apocalyptic number.

1521542 is a deficient number, since it is larger than the sum of its proper divisors (1187962).

1521542 is a wasteful number, since it uses less digits than its factorization.

1521542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164.

The product of its digits is 400, while the sum is 20.

The square root of 1521542 is about 1233.5080056489. The cubic root of 1521542 is about 115.0168091372.

Adding to 1521542 its reverse (2451251), we get a palindrome (3972793).

The spelling of 1521542 in words is "one million, five hundred twenty-one thousand, five hundred forty-two".