1143749088 has 72 divisors (see below), whose sum is σ = 3328212888. Its totient is φ = 372379392.

The previous prime is 1143749077. The next prime is 1143749093. The reversal of 1143749088 is 8809473411.

It is a happy number.

1143749088 is a `hidden beast` number, since 114 + 374 + 90 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33795 + ... + 58562.

It is an arithmetic number, because the mean of its divisors is an integer number (46225179).

Almost surely, 2^1143749088 is an apocalyptic number.

1143749088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1143749088 is an abundant number, since it is smaller than the sum of its proper divisors (2184463800).

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

1143749088 is a wasteful number, since it uses less digits than its factorization.

1143749088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92416 (or 92405 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1143749088 is about 33819.3596627730. The cubic root of 1143749088 is about 1045.7878380841.

The spelling of 1143749088 in words is "one billion, one hundred forty-three million, seven hundred forty-nine thousand, eighty-eight".