1296225867 has 8 divisors (see below), whose sum is σ = 1728860224. Its totient is φ = 863871048.

The previous prime is 1296225803. The next prime is 1296225883. The reversal of 1296225867 is 7685226921.

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

It is not a de Polignac number, because 1296225867 - 2⁶ = 1296225803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1296225167) 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, 58813 + ... + 77790.

It is an arithmetic number, because the mean of its divisors is an integer number (216107528).

Almost surely, 2^1296225867 is an apocalyptic number.

1296225867 is a deficient number, since it is larger than the sum of its proper divisors (432634357).

1296225867 is a wasteful number, since it uses less digits than its factorization.

1296225867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139769.

The product of its digits is 725760, while the sum is 48.

The square root of 1296225867 is about 36003.1369049976. The cubic root of 1296225867 is about 1090.3356896092.

The spelling of 1296225867 in words is "one billion, two hundred ninety-six million, two hundred twenty-five thousand, eight hundred sixty-seven".