1225276699 has 4 divisors (see below), whose sum is σ = 1251346464. Its totient is φ = 1199206936.

The previous prime is 1225276681. The next prime is 1225276711. The reversal of 1225276699 is 9966725221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1225276699 - 2²⁵ = 1191722267 is a prime.

It is a super-2 number, since 2×1225276699² = 3002605978224673202, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225276609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13034812 + ... + 13034905.

It is an arithmetic number, because the mean of its divisors is an integer number (312836616).

Almost surely, 2^1225276699 is an apocalyptic number.

1225276699 is a deficient number, since it is larger than the sum of its proper divisors (26069765).

1225276699 is an equidigital number, since it uses as much as digits as its factorization.

1225276699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26069764.

The product of its digits is 816480, while the sum is 49.

The square root of 1225276699 is about 35003.9526196685. The cubic root of 1225276699 is about 1070.0680362596.

The spelling of 1225276699 in words is "one billion, two hundred twenty-five million, two hundred seventy-six thousand, six hundred ninety-nine".