1279222453 has 8 divisors (see below), whose sum is σ = 1307392128. Its totient is φ = 1251092544.

The previous prime is 1279222411. The next prime is 1279222493. The reversal of 1279222453 is 3542229721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1279222453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279222493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60525 + ... + 78877.

It is an arithmetic number, because the mean of its divisors is an integer number (163424016).

Almost surely, 2^1279222453 is an apocalyptic number.

It is an amenable number.

1279222453 is a deficient number, since it is larger than the sum of its proper divisors (28169675).

1279222453 is a wasteful number, since it uses less digits than its factorization.

1279222453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19883.

The product of its digits is 60480, while the sum is 37.

The square root of 1279222453 is about 35766.2194395773. The cubic root of 1279222453 is about 1085.5471492647.

It can be divided in two parts, 12792 and 22453, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 1279222453 in words is "one billion, two hundred seventy-nine million, two hundred twenty-two thousand, four hundred fifty-three".