1012543532 has 96 divisors (see below), whose sum is σ = 2434865664. Its totient is φ = 355622400.

The previous prime is 1012543481. The next prime is 1012543561. The reversal of 1012543532 is 2353452101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 169232 + ... + 175112.

It is an arithmetic number, because the mean of its divisors is an integer number (25363184).

Almost surely, 2^1012543532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012543532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1217432832).

1012543532 is an abundant number, since it is smaller than the sum of its proper divisors (1422322132).

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

1012543532 is a wasteful number, since it uses less digits than its factorization.

1012543532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5959 (or 5957 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1012543532 is about 31820.4891854289. The cubic root of 1012543532 is about 1004.1638159072.

Adding to 1012543532 its reverse (2353452101), we get a palindrome (3365995633).

The spelling of 1012543532 in words is "one billion, twelve million, five hundred forty-three thousand, five hundred thirty-two".