1228481597 has 8 divisors (see below), whose sum is σ = 1432632000. Its totient is φ = 1052983932.

The previous prime is 1228481581. The next prime is 1228481627. The reversal of 1228481597 is 7951848221.

It is not a de Polignac number, because 1228481597 - 2⁴ = 1228481581 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 (1228481297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790447 + ... + 1791132.

It is an arithmetic number, because the mean of its divisors is an integer number (179079000).

Almost surely, 2^1228481597 is an apocalyptic number.

It is an amenable number.

1228481597 is a deficient number, since it is larger than the sum of its proper divisors (204150403).

1228481597 is an frugal number, since it uses more digits than its factorization.

1228481597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581600 (or 3581586 counting only the distinct ones).

The product of its digits is 322560, while the sum is 47.

The square root of 1228481597 is about 35049.7018104291. The cubic root of 1228481597 is about 1071.0001993535. Note that the first 3 decimals are identical.

The spelling of 1228481597 in words is "one billion, two hundred twenty-eight million, four hundred eighty-one thousand, five hundred ninety-seven".