1228954497 has 16 divisors (see below), whose sum is σ = 1736703360. Its totient is φ = 770349312.

The previous prime is 1228954481. The next prime is 1228954499. The reversal of 1228954497 is 7944598221.

It is not a de Polignac number, because 1228954497 - 2⁴ = 1228954481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (1228954499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42879 + ... + 65547.

It is an arithmetic number, because the mean of its divisors is an integer number (108543960).

Almost surely, 2^1228954497 is an apocalyptic number.

1228954497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1228954497 is a deficient number, since it is larger than the sum of its proper divisors (507748863).

1228954497 is a wasteful number, since it uses less digits than its factorization.

1228954497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23752.

The product of its digits is 1451520, while the sum is 51.

The square root of 1228954497 is about 35056.4472957543. The cubic root of 1228954497 is about 1071.1376077392.

The spelling of 1228954497 in words is "one billion, two hundred twenty-eight million, nine hundred fifty-four thousand, four hundred ninety-seven".