1525072219 has 4 divisors (see below), whose sum is σ = 1663715160. Its totient is φ = 1386429280.

The previous prime is 1525072207. The next prime is 1525072231. The reversal of 1525072219 is 9122705251.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1525072207) and next prime (1525072231).

It is a cyclic number.

It is not a de Polignac number, because 1525072219 - 2¹¹ = 1525070171 is a prime.

It is a super-2 number, since 2×1525072219² = 4651690546331167922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1525072319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69321454 + ... + 69321475.

It is an arithmetic number, because the mean of its divisors is an integer number (415928790).

Almost surely, 2^1525072219 is an apocalyptic number.

1525072219 is a deficient number, since it is larger than the sum of its proper divisors (138642941).

1525072219 is a wasteful number, since it uses less digits than its factorization.

1525072219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138642940.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 1525072219 is about 39052.1730381294. The cubic root of 1525072219 is about 1151.0569285020.

The spelling of 1525072219 in words is "one billion, five hundred twenty-five million, seventy-two thousand, two hundred nineteen".