1445723 has 2 divisors, whose sum is σ = 1445724. Its totient is φ = 1445722.

The previous prime is 1445713. The next prime is 1445749. The reversal of 1445723 is 3275441.

It is an a-pointer prime, because the next prime (1445749) can be obtained adding 1445723 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1445723 - 2⁴ = 1445707 is a prime.

It is a super-2 number, since 2×1445723² = 4180229985458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1445692 and 1445701.

It is not a weakly prime, because it can be changed into another prime (1445713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722861 + 722862.

It is an arithmetic number, because the mean of its divisors is an integer number (722862).

2^1445723 is an apocalyptic number.

1445723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445723 is an equidigital number, since it uses as much as digits as its factorization.

1445723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 26.

The square root of 1445723 is about 1202.3822187641. The cubic root of 1445723 is about 113.0737243073.

It can be divided in two parts, 1445 and 723, that multiplied together give a triangular number (1044735 = T₁₄₄₅).

The spelling of 1445723 in words is "one million, four hundred forty-five thousand, seven hundred twenty-three".