1153388899 has 8 divisors (see below), whose sum is σ = 1284942960. Its totient is φ = 1027953696.

The previous prime is 1153388897. The next prime is 1153388923. The reversal of 1153388899 is 9988833511.

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

It is a cyclic number.

It is not a de Polignac number, because 1153388899 - 2¹ = 1153388897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153388891) 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, 1529317 + ... + 1530070.

It is an arithmetic number, because the mean of its divisors is an integer number (160617870).

Almost surely, 2^1153388899 is an apocalyptic number.

1153388899 is a deficient number, since it is larger than the sum of its proper divisors (131554061).

1153388899 is a wasteful number, since it uses less digits than its factorization.

1153388899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059429.

The product of its digits is 1866240, while the sum is 55.

The square root of 1153388899 is about 33961.5797482979. The cubic root of 1153388899 is about 1048.7176784310.

The spelling of 1153388899 in words is "one billion, one hundred fifty-three million, three hundred eighty-eight thousand, eight hundred ninety-nine".