1225523196 has 30 divisors (see below), whose sum is σ = 3203760560. Its totient is φ = 408507624.

The previous prime is 1225523171. The next prime is 1225523207. The reversal of 1225523196 is 6913255221.

It is a happy number.

1225523196 is a `hidden beast` number, since 12 + 2 + 552 + 3 + 1 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1225523196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1890916 + ... + 1891563.

Almost surely, 2^1225523196 is an apocalyptic number.

It is an amenable number.

1225523196 is an abundant number, since it is smaller than the sum of its proper divisors (1978237364).

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

1225523196 is a wasteful number, since it uses less digits than its factorization.

1225523196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782495 (or 3782484 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 1225523196 is about 35007.4734306833. The cubic root of 1225523196 is about 1070.1397889978.

The spelling of 1225523196 in words is "one billion, two hundred twenty-five million, five hundred twenty-three thousand, one hundred ninety-six".