1528081073 has 4 divisors (see below), whose sum is σ = 1528178688. Its totient is φ = 1527983460.

The previous prime is 1528081069. The next prime is 1528081133. The reversal of 1528081073 is 3701808251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1528081073 - 2² = 1528081069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1528081013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19433 + ... + 58598.

It is an arithmetic number, because the mean of its divisors is an integer number (382044672).

Almost surely, 2^1528081073 is an apocalyptic number.

It is an amenable number.

1528081073 is a deficient number, since it is larger than the sum of its proper divisors (97615).

1528081073 is an equidigital number, since it uses as much as digits as its factorization.

1528081073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97614.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 1528081073 is about 39090.6775715131. The cubic root of 1528081073 is about 1151.8134144445.

The spelling of 1528081073 in words is "one billion, five hundred twenty-eight million, eighty-one thousand, seventy-three".