1520534 has 4 divisors (see below), whose sum is σ = 2280804. Its totient is φ = 760266.

The previous prime is 1520527. The next prime is 1520537. The reversal of 1520534 is 4350251.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380132 + ... + 380135.

It is an arithmetic number, because the mean of its divisors is an integer number (570201).

2^1520534 is an apocalyptic number.

1520534 is a deficient number, since it is larger than the sum of its proper divisors (760270).

1520534 is an equidigital number, since it uses as much as digits as its factorization.

1520534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760269.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1520534 is about 1233.0993471736. The cubic root of 1520534 is about 114.9914045245.

Adding to 1520534 its reverse (4350251), we get a palindrome (5870785).

The spelling of 1520534 in words is "one million, five hundred twenty thousand, five hundred thirty-four".