1225796667 has 16 divisors (see below), whose sum is σ = 1668930048. Its totient is φ = 799999200.

The previous prime is 1225796629. The next prime is 1225796683. The reversal of 1225796667 is 7666975221.

It is not a de Polignac number, because 1225796667 - 2¹⁵ = 1225763899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225796167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65292 + ... + 81942.

It is an arithmetic number, because the mean of its divisors is an integer number (104308128).

Almost surely, 2^1225796667 is an apocalyptic number.

1225796667 is a deficient number, since it is larger than the sum of its proper divisors (443133381).

1225796667 is a wasteful number, since it uses less digits than its factorization.

1225796667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17170.

The product of its digits is 1905120, while the sum is 51.

The square root of 1225796667 is about 35011.3791073702. The cubic root of 1225796667 is about 1070.2193823323.

The spelling of 1225796667 in words is "one billion, two hundred twenty-five million, seven hundred ninety-six thousand, six hundred sixty-seven".