1225863995 has 8 divisors (see below), whose sum is σ = 1505247216. Its totient is φ = 957884256.

The previous prime is 1225863979. The next prime is 1225863997. The reversal of 1225863995 is 5993685221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225863995 - 2⁴ = 1225863979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225863997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2850632 + ... + 2851061.

It is an arithmetic number, because the mean of its divisors is an integer number (188155902).

Almost surely, 2^1225863995 is an apocalyptic number.

1225863995 is a deficient number, since it is larger than the sum of its proper divisors (279383221).

1225863995 is an equidigital number, since it uses as much as digits as its factorization.

1225863995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5701741.

The product of its digits is 1166400, while the sum is 50.

The square root of 1225863995 is about 35012.3406101335. The cubic root of 1225863995 is about 1070.2389762321.

The spelling of 1225863995 in words is "one billion, two hundred twenty-five million, eight hundred sixty-three thousand, nine hundred ninety-five".