1145550023 has 4 divisors (see below), whose sum is σ = 1153911840. Its totient is φ = 1137188208.

The previous prime is 1145550019. The next prime is 1145550031. The reversal of 1145550023 is 3200555411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3200555411 = 257 ⋅12453523.

It is a cyclic number.

It is not a de Polignac number, because 1145550023 - 2² = 1145550019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1145549974 and 1145550001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145550073) 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, 4180703 + ... + 4180976.

It is an arithmetic number, because the mean of its divisors is an integer number (288477960).

Almost surely, 2^1145550023 is an apocalyptic number.

1145550023 is a deficient number, since it is larger than the sum of its proper divisors (8361817).

1145550023 is an equidigital number, since it uses as much as digits as its factorization.

1145550023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8361816.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1145550023 is about 33845.9749896498. The cubic root of 1145550023 is about 1046.3364456645.

The spelling of 1145550023 in words is "one billion, one hundred forty-five million, five hundred fifty thousand, twenty-three".