1528222445 has 8 divisors (see below), whose sum is σ = 1834638336. Its totient is φ = 1222063696.

The previous prime is 1528222441. The next prime is 1528222481. The reversal of 1528222445 is 5442228251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1528222445 - 2² = 1528222441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1528222441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50957 + ... + 75186.

It is an arithmetic number, because the mean of its divisors is an integer number (229329792).

Almost surely, 2^1528222445 is an apocalyptic number.

It is an amenable number.

1528222445 is a deficient number, since it is larger than the sum of its proper divisors (306415891).

1528222445 is a wasteful number, since it uses less digits than its factorization.

1528222445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128571.

The product of its digits is 51200, while the sum is 35.

The square root of 1528222445 is about 39092.4857869131. The cubic root of 1528222445 is about 1151.8489337520.

The spelling of 1528222445 in words is "one billion, five hundred twenty-eight million, two hundred twenty-two thousand, four hundred forty-five".