1225001814 has 16 divisors (see below), whose sum is σ = 2479522752. Its totient is φ = 403414088.

The previous prime is 1225001777. The next prime is 1225001893. The reversal of 1225001814 is 4181005221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229424 + ... + 1230419.

It is an arithmetic number, because the mean of its divisors is an integer number (154970172).

Almost surely, 2^1225001814 is an apocalyptic number.

1225001814 is an abundant number, since it is smaller than the sum of its proper divisors (1254520938).

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

1225001814 is a wasteful number, since it uses less digits than its factorization.

1225001814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459931.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 1225001814 is about 35000.0259142761. The cubic root of 1225001814 is about 1069.9880087165.

The spelling of 1225001814 in words is "one billion, two hundred twenty-five million, one thousand, eight hundred fourteen".