1145351091 has 8 divisors (see below), whose sum is σ = 1532532160. Its totient is φ = 760868712.

The previous prime is 1145351029. The next prime is 1145351101. The reversal of 1145351091 is 1901535411.

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

It is not a de Polignac number, because 1145351091 - 2²⁵ = 1111796659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145353091) 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, 673681 + ... + 675378.

It is an arithmetic number, because the mean of its divisors is an integer number (191566520).

Almost surely, 2^1145351091 is an apocalyptic number.

1145351091 is a deficient number, since it is larger than the sum of its proper divisors (387181069).

1145351091 is a wasteful number, since it uses less digits than its factorization.

1145351091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349345.

The product of its (nonzero) digits is 2700, while the sum is 30.

The square root of 1145351091 is about 33843.0360783426. The cubic root of 1145351091 is about 1046.2758745130.

The spelling of 1145351091 in words is "one billion, one hundred forty-five million, three hundred fifty-one thousand, ninety-one".