1149861916 has 12 divisors (see below), whose sum is σ = 2299723888. Its totient is φ = 492797952.

The previous prime is 1149861901. The next prime is 1149861941. The reversal of 1149861916 is 6191689411.

1149861916 is an admirable number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20533221 + ... + 20533276.

Almost surely, 2^1149861916 is an apocalyptic number.

It is an amenable number.

1149861916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1149861916 is a wasteful number, since it uses less digits than its factorization.

1149861916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41066508 (or 41066506 counting only the distinct ones).

The product of its digits is 93312, while the sum is 46.

The square root of 1149861916 is about 33909.6139170000. The cubic root of 1149861916 is about 1047.6476184021.

The spelling of 1149861916 in words is "one billion, one hundred forty-nine million, eight hundred sixty-one thousand, nine hundred sixteen".