1247223454 has 16 divisors (see below), whose sum is σ = 1957657248. Its totient is φ = 595307232.

The previous prime is 1247223451. The next prime is 1247223457. The reversal of 1247223454 is 4543227421.

It is an interprime number because it is at equal distance from previous prime (1247223451) and next prime (1247223457).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247223451) 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, 155082 + ... + 162925.

It is an arithmetic number, because the mean of its divisors is an integer number (122353578).

Almost surely, 2^1247223454 is an apocalyptic number.

1247223454 is a deficient number, since it is larger than the sum of its proper divisors (710433794).

1247223454 is a wasteful number, since it uses less digits than its factorization.

1247223454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318099.

The product of its digits is 53760, while the sum is 34.

The square root of 1247223454 is about 35316.0509400471. The cubic root of 1247223454 is about 1076.4191688083.

The spelling of 1247223454 in words is "one billion, two hundred forty-seven million, two hundred twenty-three thousand, four hundred fifty-four".