1020243525 has 96 divisors (see below), whose sum is σ = 2068439040. Its totient is φ = 433105920.

The previous prime is 1020243503. The next prime is 1020243527. The reversal of 1020243525 is 5253420201.

It is not a de Polignac number, because 1020243525 - 2⁵ = 1020243493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020243495 and 1020243504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020243527) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 704352 + ... + 705798.

It is an arithmetic number, because the mean of its divisors is an integer number (21546240).

Almost surely, 2^1020243525 is an apocalyptic number.

1020243525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020243525 is an abundant number, since it is smaller than the sum of its proper divisors (1048195515).

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

1020243525 is a wasteful number, since it uses less digits than its factorization.

1020243525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1020243525 is about 31941.2511495715. The cubic root of 1020243525 is about 1006.7028135761.

Adding to 1020243525 its reverse (5253420201), we get a palindrome (6273663726).

The spelling of 1020243525 in words is "one billion, twenty million, two hundred forty-three thousand, five hundred twenty-five".