1525142000 has 40 divisors (see below), whose sum is σ = 3687798192. Its totient is φ = 610056000.

The previous prime is 1525141993. The next prime is 1525142033. The reversal of 1525142000 is 2415251.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379286 + ... + 383285.

Almost surely, 2^1525142000 is an apocalyptic number.

1525142000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1525142000 is an abundant number, since it is smaller than the sum of its proper divisors (2162656192).

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

1525142000 is an equidigital number, since it uses as much as digits as its factorization.

1525142000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762594 (or 762578 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1525142000 is about 39053.0664609068. The cubic root of 1525142000 is about 1151.0744841031.

Adding to 1525142000 its reverse (2415251), we get a palindrome (1527557251).

The spelling of 1525142000 in words is "one billion, five hundred twenty-five million, one hundred forty-two thousand".