1145844123 has 8 divisors (see below), whose sum is σ = 1528715328. Its totient is φ = 763434504.

The previous prime is 1145844043. The next prime is 1145844131. The reversal of 1145844123 is 3214485411.

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

It is not a de Polignac number, because 1145844123 - 2¹² = 1145840027 is a prime.

It is a super-3 number, since 3×1145844123³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145844223) 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 7 ways as a sum of consecutive naturals, for example, 109561 + ... + 119562.

It is an arithmetic number, because the mean of its divisors is an integer number (191089416).

Almost surely, 2^1145844123 is an apocalyptic number.

1145844123 is a deficient number, since it is larger than the sum of its proper divisors (382871205).

1145844123 is a wasteful number, since it uses less digits than its factorization.

1145844123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230793.

The product of its digits is 15360, while the sum is 33.

The square root of 1145844123 is about 33850.3193928802. The cubic root of 1145844123 is about 1046.4259808838.

The spelling of 1145844123 in words is "one billion, one hundred forty-five million, eight hundred forty-four thousand, one hundred twenty-three".