1148838156 has 18 divisors (see below), whose sum is σ = 2904007652. Its totient is φ = 382946040.

The previous prime is 1148838143. The next prime is 1148838169. The reversal of 1148838156 is 6518388411.

1148838156 is a `hidden beast` number, since 11 + 488 + 3 + 8 + 156 = 666.

It is an interprime number because it is at equal distance from previous prime (1148838143) and next prime (1148838169).

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15956050 + ... + 15956121.

Almost surely, 2^1148838156 is an apocalyptic number.

It is an amenable number.

1148838156 is an abundant number, since it is smaller than the sum of its proper divisors (1755169496).

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

1148838156 is a wasteful number, since it uses less digits than its factorization.

1148838156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31912181 (or 31912176 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 1148838156 is about 33894.5151315076. The cubic root of 1148838156 is about 1047.3366076699.

The spelling of 1148838156 in words is "one billion, one hundred forty-eight million, eight hundred thirty-eight thousand, one hundred fifty-six".