1520542 has 8 divisors (see below), whose sum is σ = 2286216. Its totient is φ = 758472.

The previous prime is 1520539. The next prime is 1520543. The reversal of 1520542 is 2450251.

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 (1520543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793 + ... + 1915.

It is an arithmetic number, because the mean of its divisors is an integer number (285777).

2^1520542 is an apocalyptic number.

1520542 is a deficient number, since it is larger than the sum of its proper divisors (765674).

1520542 is a wasteful number, since it uses less digits than its factorization.

1520542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1520542 is about 1233.1025910280. The cubic root of 1520542 is about 114.9916061926.

Adding to 1520542 its reverse (2450251), we get a palindrome (3970793).

The spelling of 1520542 in words is "one million, five hundred twenty thousand, five hundred forty-two".