1230528577 has 4 divisors (see below), whose sum is σ = 1241817940. Its totient is φ = 1219239216.

The previous prime is 1230528571. The next prime is 1230528617. The reversal of 1230528577 is 7758250321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7758250321 = 1861 ⋅4168861.

It can be written as a sum of positive squares in 2 ways, for example, as 881436721 + 349091856 = 29689^2 + 18684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230528577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230528571) 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, 5644518 + ... + 5644735.

It is an arithmetic number, because the mean of its divisors is an integer number (310454485).

Almost surely, 2^1230528577 is an apocalyptic number.

It is an amenable number.

1230528577 is a deficient number, since it is larger than the sum of its proper divisors (11289363).

1230528577 is a wasteful number, since it uses less digits than its factorization.

1230528577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11289362.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 1230528577 is about 35078.8907606840. The cubic root of 1230528577 is about 1071.5947271720.

Adding to 1230528577 its reverse (7758250321), we get a palindrome (8988778898).

The spelling of 1230528577 in words is "one billion, two hundred thirty million, five hundred twenty-eight thousand, five hundred seventy-seven".