1145207023 has 4 divisors (see below), whose sum is σ = 1212572160. Its totient is φ = 1077841888.

The previous prime is 1145206999. The next prime is 1145207027. The reversal of 1145207023 is 3207025411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3207025411 = 52489 ⋅61099.

It is not a de Polignac number, because 1145207023 - 2⁹ = 1145206511 is a prime.

It is a super-2 number, since 2×1145207023² = 2622998251057045058, 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 (1145207027) 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, 33682543 + ... + 33682576.

It is an arithmetic number, because the mean of its divisors is an integer number (303143040).

Almost surely, 2^1145207023 is an apocalyptic number.

1145207023 is a deficient number, since it is larger than the sum of its proper divisors (67365137).

1145207023 is an equidigital number, since it uses as much as digits as its factorization.

1145207023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67365136.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1145207023 is about 33840.9075380670. The cubic root of 1145207023 is about 1046.2320040660.

The spelling of 1145207023 in words is "one billion, one hundred forty-five million, two hundred seven thousand, twenty-three".