1525230145 has 16 divisors (see below), whose sum is σ = 1843319808. Its totient is φ = 1211515200.

The previous prime is 1525230139. The next prime is 1525230173. The reversal of 1525230145 is 5410325251.

It is not a de Polignac number, because 1525230145 - 2⁷ = 1525230017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 596620 + ... + 599170.

It is an arithmetic number, because the mean of its divisors is an integer number (115207488).

Almost surely, 2^1525230145 is an apocalyptic number.

It is an amenable number.

1525230145 is a deficient number, since it is larger than the sum of its proper divisors (318089663).

1525230145 is a wasteful number, since it uses less digits than its factorization.

1525230145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1525230145 is about 39054.1949731396. The cubic root of 1525230145 is about 1151.0966589794.

Adding to 1525230145 its reverse (5410325251), we get a palindrome (6935555396).

The spelling of 1525230145 in words is "one billion, five hundred twenty-five million, two hundred thirty thousand, one hundred forty-five".