1032401521 has 4 divisors (see below), whose sum is σ = 1033161444. Its totient is φ = 1031641600.

The previous prime is 1032401519. The next prime is 1032401569. The reversal of 1032401521 is 1251042301.

1032401521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1251042301 = 43 ⋅29094007.

It can be written as a sum of positive squares in 2 ways, for example, as 478034496 + 554367025 = 21864^2 + 23545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1032401521 - 2¹ = 1032401519 is a prime.

It is a super-2 number, since 2×1032401521² = 2131705801126226882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1032411521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377920 + ... + 380641.

It is an arithmetic number, because the mean of its divisors is an integer number (258290361).

Almost surely, 2^1032401521 is an apocalyptic number.

It is an amenable number.

1032401521 is a deficient number, since it is larger than the sum of its proper divisors (759923).

1032401521 is an equidigital number, since it uses as much as digits as its factorization.

1032401521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759922.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1032401521 is about 32131.0056020661. The cubic root of 1032401521 is about 1010.6859115574.

Adding to 1032401521 its reverse (1251042301), we get a palindrome (2283443822).

The spelling of 1032401521 in words is "one billion, thirty-two million, four hundred one thousand, five hundred twenty-one".