1525130235 has 128 divisors (see below), whose sum is σ = 2906956800. Its totient is φ = 757693440.

The previous prime is 1525130147. The next prime is 1525130239. The reversal of 1525130235 is 5320315251.

It is a happy number.

1525130235 is a `hidden beast` number, since 1 + 525 + 130 + 2 + 3 + 5 = 666.

It is not a de Polignac number, because 1525130235 - 2⁷ = 1525130107 is a prime.

It is a super-2 number, since 2×1525130235² = 4652044467422310450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1525130199 and 1525130208.

It is not an unprimeable number, because it can be changed into a prime (1525130239) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20892159 + ... + 20892231.

It is an arithmetic number, because the mean of its divisors is an integer number (22710600).

Almost surely, 2^1525130235 is an apocalyptic number.

1525130235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1525130235 is a deficient number, since it is larger than the sum of its proper divisors (1381826565).

1525130235 is a wasteful number, since it uses less digits than its factorization.

1525130235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1525130235 is about 39052.9158322397. The cubic root of 1525130235 is about 1151.0715242855.

Adding to 1525130235 its reverse (5320315251), we get a palindrome (6845445486).

The spelling of 1525130235 in words is "one billion, five hundred twenty-five million, one hundred thirty thousand, two hundred thirty-five".