1525072130 has 16 divisors (see below), whose sum is σ = 2758143744. Its totient is φ = 607136880.

The previous prime is 1525072111. The next prime is 1525072147. The reversal of 1525072130 is 312705251.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1525072130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359282 + ... + 363501.

It is an arithmetic number, because the mean of its divisors is an integer number (172383984).

Almost surely, 2^1525072130 is an apocalyptic number.

1525072130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1525072130 is a deficient number, since it is larger than the sum of its proper divisors (1233071614).

1525072130 is a wasteful number, since it uses less digits than its factorization.

1525072130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723001.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1525072130 is about 39052.1718986281. The cubic root of 1525072130 is about 1151.0569061109.

Adding to 1525072130 its reverse (312705251), we get a palindrome (1837777381).

The spelling of 1525072130 in words is "one billion, five hundred twenty-five million, seventy-two thousand, one hundred thirty".