1199245272 has 16 divisors (see below), whose sum is σ = 2998113240. Its totient is φ = 399748416.

The previous prime is 1199245237. The next prime is 1199245273. The reversal of 1199245272 is 2725429911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199245273) 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 3 ways as a sum of consecutive naturals, for example, 24984253 + ... + 24984300.

Almost surely, 2^1199245272 is an apocalyptic number.

1199245272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1199245272 is an abundant number, since it is smaller than the sum of its proper divisors (1798867968).

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

1199245272 is a wasteful number, since it uses less digits than its factorization.

1199245272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49968562 (or 49968558 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 1199245272 is about 34630.1208776406. The cubic root of 1199245272 is about 1062.4357396338.

The spelling of 1199245272 in words is "one billion, one hundred ninety-nine million, two hundred forty-five thousand, two hundred seventy-two".