1145918783 has 4 divisors (see below), whose sum is σ = 1152250008. Its totient is φ = 1139587560.

The previous prime is 1145918759. The next prime is 1145918791. The reversal of 1145918783 is 3878195411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3878195411 = 4547 ⋅852913.

It is a cyclic number.

It is not a de Polignac number, because 1145918783 - 2²⁴ = 1129141567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145918723) 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, 3165341 + ... + 3165702.

It is an arithmetic number, because the mean of its divisors is an integer number (288062502).

Almost surely, 2^1145918783 is an apocalyptic number.

1145918783 is a deficient number, since it is larger than the sum of its proper divisors (6331225).

1145918783 is an equidigital number, since it uses as much as digits as its factorization.

1145918783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331224.

The product of its digits is 241920, while the sum is 47.

The square root of 1145918783 is about 33851.4221710108. The cubic root of 1145918783 is about 1046.4487077875.

The spelling of 1145918783 in words is "one billion, one hundred forty-five million, nine hundred eighteen thousand, seven hundred eighty-three".