1520532 has 90 divisors (see below), whose sum is σ = 4517898. Its totient is φ = 443232.

The previous prime is 1520527. The next prime is 1520537. The reversal of 1520532 is 2350251.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1520527) and next prime (1520537).

It can be written as a sum of positive squares in only one way, i.e., 1052676 + 467856 = 1026^2 + 684^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 80019 + ... + 80037.

2^1520532 is an apocalyptic number.

1520532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1520532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2258949).

1520532 is an abundant number, since it is smaller than the sum of its proper divisors (2997366).

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

1520532 is a wasteful number, since it uses less digits than its factorization.

1520532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1520532 is about 1233.0985362087. The cubic root of 1520532 is about 114.9913541074.

Adding to 1520532 its reverse (2350251), we get a palindrome (3870783).

The spelling of 1520532 in words is "one million, five hundred twenty thousand, five hundred thirty-two".