1525133212 has 12 divisors (see below), whose sum is σ = 2669281776. Its totient is φ = 762481280.

The previous prime is 1525133191. The next prime is 1525133219. The reversal of 1525133212 is 2123315251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525133219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36012 + ... + 65932.

It is an arithmetic number, because the mean of its divisors is an integer number (222440148).

Almost surely, 2^1525133212 is an apocalyptic number.

It is an amenable number.

1525133212 is a deficient number, since it is larger than the sum of its proper divisors (1144148564).

1525133212 is a wasteful number, since it uses less digits than its factorization.

1525133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42668 (or 42666 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 1525133212 is about 39052.9539471728. The cubic root of 1525133212 is about 1151.0722732353.

Adding to 1525133212 its reverse (2123315251), we get a palindrome (3648448463).

The spelling of 1525133212 in words is "one billion, five hundred twenty-five million, one hundred thirty-three thousand, two hundred twelve".