1445023715 has 16 divisors (see below), whose sum is σ = 1885656672. Its totient is φ = 1058609664.

The previous prime is 1445023711. The next prime is 1445023717. The reversal of 1445023715 is 5173205441.

It is not a de Polignac number, because 1445023715 - 2² = 1445023711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445023711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226589 + ... + 232878.

It is an arithmetic number, because the mean of its divisors is an integer number (117853542).

Almost surely, 2^1445023715 is an apocalyptic number.

1445023715 is a deficient number, since it is larger than the sum of its proper divisors (440632957).

1445023715 is a wasteful number, since it uses less digits than its factorization.

1445023715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459526.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 1445023715 is about 38013.4675476995. The cubic root of 1445023715 is about 1130.5549040607.

The spelling of 1445023715 in words is "one billion, four hundred forty-five million, twenty-three thousand, seven hundred fifteen".