1023525421 has 8 divisors (see below), whose sum is σ = 1092571200. Its totient is φ = 955997280.

The previous prime is 1023525407. The next prime is 1023525457. The reversal of 1023525421 is 1245253201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1023525421 - 2⁵ = 1023525389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023525491) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 378016 + ... + 380713.

It is an arithmetic number, because the mean of its divisors is an integer number (136571400).

Almost surely, 2^1023525421 is an apocalyptic number.

It is an amenable number.

1023525421 is a deficient number, since it is larger than the sum of its proper divisors (69045779).

1023525421 is an equidigital number, since it uses as much as digits as its factorization.

1023525421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758819.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1023525421 is about 31992.5838437598. The cubic root of 1023525421 is about 1007.7811043775.

Adding to 1023525421 its reverse (1245253201), we get a palindrome (2268778622).

The spelling of 1023525421 in words is "one billion, twenty-three million, five hundred twenty-five thousand, four hundred twenty-one".