1130021525 has 12 divisors (see below), whose sum is σ = 1402142400. Its totient is φ = 903426480.

The previous prime is 1130021471. The next prime is 1130021539. The reversal of 1130021525 is 5251200311.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1130021525 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1130021497 and 1130021506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26516 + ... + 54434.

It is an arithmetic number, because the mean of its divisors is an integer number (116845200).

Almost surely, 2^1130021525 is an apocalyptic number.

It is an amenable number.

1130021525 is a deficient number, since it is larger than the sum of its proper divisors (272120875).

1130021525 is a wasteful number, since it uses less digits than its factorization.

1130021525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29548 (or 29543 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1130021525 is about 33615.7927914842. The cubic root of 1130021525 is about 1041.5870508395.

Adding to 1130021525 its reverse (5251200311), we get a palindrome (6381221836).

The spelling of 1130021525 in words is "one billion, one hundred thirty million, twenty-one thousand, five hundred twenty-five".