1145248423 has 6 divisors (see below), whose sum is σ = 1258826912. Its totient is φ = 1041134820.

The previous prime is 1145248417. The next prime is 1145248441. The reversal of 1145248423 is 3248425411.

It is a de Polignac number, because none of the positive numbers 2^k-1145248423 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 (1145248463) 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 5 ways as a sum of consecutive naturals, for example, 4732311 + ... + 4732552.

Almost surely, 2^1145248423 is an apocalyptic number.

1145248423 is a deficient number, since it is larger than the sum of its proper divisors (113578489).

1145248423 is an equidigital number, since it uses as much as digits as its factorization.

1145248423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9464885 (or 9464874 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 1145248423 is about 33841.5192182621. The cubic root of 1145248423 is about 1046.2446112430.

The spelling of 1145248423 in words is "one billion, one hundred forty-five million, two hundred forty-eight thousand, four hundred twenty-three".