1528441 has 2 divisors, whose sum is σ = 1528442. Its totient is φ = 1528440.

The previous prime is 1528427. The next prime is 1528447. The reversal of 1528441 is 1448251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 921600 + 606841 = 960^2 + 779^2 .

It is a cyclic number.

It is not a de Polignac number, because 1528441 - 2⁵ = 1528409 is a prime.

It is a super-2 number, since 2×1528441² = 4672263780962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1528447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 764220 + 764221.

It is an arithmetic number, because the mean of its divisors is an integer number (764221).

2^1528441 is an apocalyptic number.

It is an amenable number.

1528441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1528441 is an equidigital number, since it uses as much as digits as its factorization.

1528441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1280, while the sum is 25.

The square root of 1528441 is about 1236.3013386711. The cubic root of 1528441 is about 115.1903840755.

The spelling of 1528441 in words is "one million, five hundred twenty-eight thousand, four hundred forty-one".