1148888913 has 4 divisors (see below), whose sum is σ = 1531851888. Its totient is φ = 765925940.

The previous prime is 1148888879. The next prime is 1148888929. The reversal of 1148888913 is 3198888411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1148888913 - 2⁹ = 1148888401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1148888963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191481483 + ... + 191481488.

It is an arithmetic number, because the mean of its divisors is an integer number (382962972).

Almost surely, 2^1148888913 is an apocalyptic number.

It is an amenable number.

1148888913 is a deficient number, since it is larger than the sum of its proper divisors (382962975).

1148888913 is an equidigital number, since it uses as much as digits as its factorization.

1148888913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382962974.

The product of its digits is 442368, while the sum is 51.

The square root of 1148888913 is about 33895.2638727006. The cubic root of 1148888913 is about 1047.3520316241.

The spelling of 1148888913 in words is "one billion, one hundred forty-eight million, eight hundred eighty-eight thousand, nine hundred thirteen".