1225263036 has 48 divisors (see below), whose sum is σ = 2909997440. Its totient is φ = 401163840.

The previous prime is 1225263023. The next prime is 1225263047. The reversal of 1225263036 is 6303625221.

It is a junction number, because it is equal to n+sod(n) for n = 1225262994 and 1225263012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302706 + ... + 306726.

Almost surely, 2^1225263036 is an apocalyptic number.

It is an amenable number.

1225263036 is an abundant number, since it is smaller than the sum of its proper divisors (1684734404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225263036 is a wasteful number, since it uses less digits than its factorization.

1225263036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474 (or 4472 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1225263036 is about 35003.7574554504. The cubic root of 1225263036 is about 1070.0640588195.

Adding to 1225263036 its reverse (6303625221), we get a palindrome (7528888257).

The spelling of 1225263036 in words is "one billion, two hundred twenty-five million, two hundred sixty-three thousand, thirty-six".