1145293139 has 4 divisors (see below), whose sum is σ = 1173227160. Its totient is φ = 1117359120.

The previous prime is 1145293103. The next prime is 1145293147. The reversal of 1145293139 is 9313925411.

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 1145293139 - 2²⁴ = 1128515923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145293199) 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, 13966949 + ... + 13967030.

It is an arithmetic number, because the mean of its divisors is an integer number (293306790).

Almost surely, 2^1145293139 is an apocalyptic number.

1145293139 is a deficient number, since it is larger than the sum of its proper divisors (27934021).

1145293139 is an equidigital number, since it uses as much as digits as its factorization.

1145293139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27934020.

The product of its digits is 29160, while the sum is 38.

The square root of 1145293139 is about 33842.1798795527. The cubic root of 1145293139 is about 1046.2582278710.

The spelling of 1145293139 in words is "one billion, one hundred forty-five million, two hundred ninety-three thousand, one hundred thirty-nine".