1134907891 has 8 divisors (see below), whose sum is σ = 1233422960. Its totient is φ = 1037994912.

The previous prime is 1134907877. The next prime is 1134907897. The reversal of 1134907891 is 1987094311.

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

It is a cyclic number.

It is not a de Polignac number, because 1134907891 - 2¹⁹ = 1134383603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1134907897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399045 + ... + 401878.

It is an arithmetic number, because the mean of its divisors is an integer number (154177870).

Almost surely, 2^1134907891 is an apocalyptic number.

1134907891 is a deficient number, since it is larger than the sum of its proper divisors (98515069).

1134907891 is a wasteful number, since it uses less digits than its factorization.

1134907891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801045.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 1134907891 is about 33688.3940104007. The cubic root of 1134907891 is about 1043.0862131731.

The spelling of 1134907891 in words is "one billion, one hundred thirty-four million, nine hundred seven thousand, eight hundred ninety-one".