1228453497 has 6 divisors (see below), whose sum is σ = 1774432842. Its totient is φ = 818968992.

The previous prime is 1228453469. The next prime is 1228453511. The reversal of 1228453497 is 7943548221.

1228453497 is a `hidden beast` number, since 1 + 2 + 28 + 4 + 534 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 630210816 + 598242681 = 25104^2 + 24459^2 .

It is not a de Polignac number, because 1228453497 - 2⁶ = 1228453433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228453097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68247408 + ... + 68247425.

It is an arithmetic number, because the mean of its divisors is an integer number (295738807).

Almost surely, 2^1228453497 is an apocalyptic number.

It is an amenable number.

1228453497 is a deficient number, since it is larger than the sum of its proper divisors (545979345).

1228453497 is a wasteful number, since it uses less digits than its factorization.

1228453497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136494839 (or 136494836 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 1228453497 is about 35049.3009488064. The cubic root of 1228453497 is about 1070.9920333554.

The spelling of 1228453497 in words is "one billion, two hundred twenty-eight million, four hundred fifty-three thousand, four hundred ninety-seven".