1145312119 has 4 divisors (see below), whose sum is σ = 1308928144. Its totient is φ = 981696096.

The previous prime is 1145312101. The next prime is 1145312123. The reversal of 1145312119 is 9112135411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1145312119 - 2¹³ = 1145303927 is a prime.

It is a super-2 number, since 2×1145312119² = 2623479699856540322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145313119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81808002 + ... + 81808015.

It is an arithmetic number, because the mean of its divisors is an integer number (327232036).

Almost surely, 2^1145312119 is an apocalyptic number.

1145312119 is a deficient number, since it is larger than the sum of its proper divisors (163616025).

1145312119 is an equidigital number, since it uses as much as digits as its factorization.

1145312119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163616024.

The product of its digits is 1080, while the sum is 28.

The square root of 1145312119 is about 33842.4602976793. The cubic root of 1145312119 is about 1046.2640074310.

The spelling of 1145312119 in words is "one billion, one hundred forty-five million, three hundred twelve thousand, one hundred nineteen".