1149909078 has 8 divisors (see below), whose sum is σ = 2299818168. Its totient is φ = 383303024.

The previous prime is 1149909077. The next prime is 1149909157. The reversal of 1149909078 is 8709099411.

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

1149909078 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149909077) 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, 95825751 + ... + 95825762.

It is an arithmetic number, because the mean of its divisors is an integer number (287477271).

Almost surely, 2^1149909078 is an apocalyptic number.

1149909078 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.

1149909078 is a wasteful number, since it uses less digits than its factorization.

1149909078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191651518.

The product of its (nonzero) digits is 163296, while the sum is 48.

The square root of 1149909078 is about 33910.3093173743. The cubic root of 1149909078 is about 1047.6619414209.

The spelling of 1149909078 in words is "one billion, one hundred forty-nine million, nine hundred nine thousand, seventy-eight".