1145404023 has 8 divisors (see below), whose sum is σ = 1527577968. Its totient is φ = 763416384.

The previous prime is 1145404009. The next prime is 1145404049. The reversal of 1145404023 is 3204045411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1145404023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1145403984 and 1145404002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145404123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31536 + ... + 57317.

It is an arithmetic number, because the mean of its divisors is an integer number (190947246).

Almost surely, 2^1145404023 is an apocalyptic number.

1145404023 is a deficient number, since it is larger than the sum of its proper divisors (382173945).

1145404023 is an equidigital number, since it uses as much as digits as its factorization.

1145404023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93153.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1145404023 is about 33843.8180913442. The cubic root of 1145404023 is about 1046.2919920226.

Adding to 1145404023 its reverse (3204045411), we get a palindrome (4349449434).

The spelling of 1145404023 in words is "one billion, one hundred forty-five million, four hundred four thousand, twenty-three".