1025312356 has 12 divisors (see below), whose sum is σ = 1795541692. Its totient is φ = 512300448.

The previous prime is 1025312311. The next prime is 1025312357. The reversal of 1025312356 is 6532135201.

It can be written as a sum of positive squares in 2 ways, for example, as 688222756 + 337089600 = 26234^2 + 18360^2 .

It is not an unprimeable number, because it can be changed into a prime (1025312357) 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, 82395 + ... + 94018.

Almost surely, 2^1025312356 is an apocalyptic number.

It is an amenable number.

1025312356 is a deficient number, since it is larger than the sum of its proper divisors (770229336).

1025312356 is a wasteful number, since it uses less digits than its factorization.

1025312356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177870 (or 177868 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1025312356 is about 32020.4989967364. The cubic root of 1025312356 is about 1008.3672459297.

Adding to 1025312356 its reverse (6532135201), we get a palindrome (7557447557).

The spelling of 1025312356 in words is "one billion, twenty-five million, three hundred twelve thousand, three hundred fifty-six".