1445375223 has 12 divisors (see below), whose sum is σ = 2178536880. Its totient is φ = 921688416.

The previous prime is 1445375221. The next prime is 1445375251. The reversal of 1445375223 is 3225735441.

It is not a de Polignac number, because 1445375223 - 2¹ = 1445375221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445375221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3491038 + ... + 3491451.

It is an arithmetic number, because the mean of its divisors is an integer number (181544740).

Almost surely, 2^1445375223 is an apocalyptic number.

1445375223 is a deficient number, since it is larger than the sum of its proper divisors (733161657).

1445375223 is a wasteful number, since it uses less digits than its factorization.

1445375223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6982518 (or 6982515 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 1445375223 is about 38018.0907332286. The cubic root of 1445375223 is about 1130.6465673486.

It can be divided in two parts, 14453 and 75223, that added together give a triangular number (89676 = T₄₂₃).

The spelling of 1445375223 in words is "one billion, four hundred forty-five million, three hundred seventy-five thousand, two hundred twenty-three".