1525219 has 2 divisors, whose sum is σ = 1525220. Its totient is φ = 1525218.

The previous prime is 1525217. The next prime is 1525229. The reversal of 1525219 is 9125251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1525219 - 2¹ = 1525217 is a prime.

It is a super-2 number, since 2×1525219² = 4652585995922, which contains 22 as substring.

Together with 1525217, it forms a pair of twin primes.

1525219 is a lucky number.

It is equal to p₁₁₅₉₅₄ and since 1525219 and 115954 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 1525193 and 1525202.

It is not a weakly prime, because it can be changed into another prime (1525217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762609 + 762610.

It is an arithmetic number, because the mean of its divisors is an integer number (762610).

2^1525219 is an apocalyptic number.

1525219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525219 is an equidigital number, since it uses as much as digits as its factorization.

1525219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 25.

The square root of 1525219 is about 1234.9975708478. The cubic root of 1525219 is about 115.1093855249.

The spelling of 1525219 in words is "one million, five hundred twenty-five thousand, two hundred nineteen".