1225085882 has 4 divisors (see below), whose sum is σ = 1837628826. Its totient is φ = 612542940.

The previous prime is 1225085861. The next prime is 1225085899. The reversal of 1225085882 is 2885805221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1195154041 + 29931841 = 34571^2 + 5471^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306271469 + ... + 306271472.

Almost surely, 2^1225085882 is an apocalyptic number.

1225085882 is a deficient number, since it is larger than the sum of its proper divisors (612542944).

1225085882 is an equidigital number, since it uses as much as digits as its factorization.

1225085882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612542943.

The product of its (nonzero) digits is 102400, while the sum is 41.

The square root of 1225085882 is about 35001.2268642115. The cubic root of 1225085882 is about 1070.0124847875.

The spelling of 1225085882 in words is "one billion, two hundred twenty-five million, eighty-five thousand, eight hundred eighty-two".