1146247899 has 8 divisors (see below), whose sum is σ = 1618232400. Its totient is φ = 719214336.

The previous prime is 1146247897. The next prime is 1146247913. The reversal of 1146247899 is 9987426411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1146247899 - 2¹ = 1146247897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 22475449 = 1146247899 / (1 + 1 + 4 + 6 + 2 + 4 + 7 + 8 + 9 + 9).

It is not an unprimeable number, because it can be changed into a prime (1146247897) 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, 11237674 + ... + 11237775.

It is an arithmetic number, because the mean of its divisors is an integer number (202279050).

Almost surely, 2^1146247899 is an apocalyptic number.

1146247899 is a deficient number, since it is larger than the sum of its proper divisors (471984501).

1146247899 is a wasteful number, since it uses less digits than its factorization.

1146247899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22475469.

The product of its digits is 870912, while the sum is 51.

The square root of 1146247899 is about 33856.2830062604. The cubic root of 1146247899 is about 1046.5488806943.

The spelling of 1146247899 in words is "one billion, one hundred forty-six million, two hundred forty-seven thousand, eight hundred ninety-nine".