1032505281 has 6 divisors (see below), whose sum is σ = 1491396530. Its totient is φ = 688336848.

The previous prime is 1032505267. The next prime is 1032505297. The reversal of 1032505281 is 1825052301.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 812250000 + 220255281 = 28500^2 + 14841^2 .

It is not a de Polignac number, because 1032505281 - 2⁹ = 1032504769 is a prime.

It is a super-2 number, since 2×1032505281² = 2132134310585777922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1032505261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57361396 + ... + 57361413.

Almost surely, 2^1032505281 is an apocalyptic number.

It is an amenable number.

1032505281 is a deficient number, since it is larger than the sum of its proper divisors (458891249).

1032505281 is a wasteful number, since it uses less digits than its factorization.

1032505281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114722815 (or 114722812 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1032505281 is about 32132.6202012846. The cubic root of 1032505281 is about 1010.7197695913.

Adding to 1032505281 its reverse (1825052301), we get a palindrome (2857557582).

The spelling of 1032505281 in words is "one billion, thirty-two million, five hundred five thousand, two hundred eighty-one".