1213397248 has 36 divisors (see below), whose sum is σ = 2768066560. Its totient is φ = 520026624.

The previous prime is 1213397239. The next prime is 1213397279. The reversal of 1213397248 is 8427933121.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1213397248.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 336768 + ... + 340351.

Almost surely, 2^1213397248 is an apocalyptic number.

It is an amenable number.

1213397248 is an abundant number, since it is smaller than the sum of its proper divisors (1554669312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213397248 is an frugal number, since it uses more digits than its factorization.

1213397248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677142 (or 677128 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 1213397248 is about 34833.8520407950. The cubic root of 1213397248 is about 1066.5985817654.

The spelling of 1213397248 in words is "one billion, two hundred thirteen million, three hundred ninety-seven thousand, two hundred forty-eight".