1445230081 has 2 divisors, whose sum is σ = 1445230082. Its totient is φ = 1445230080.

The previous prime is 1445230067. The next prime is 1445230091. The reversal of 1445230081 is 1800325441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1194324481 + 250905600 = 34559^2 + 15840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445230081 - 2²³ = 1436841473 is a prime.

It is a super-2 number, since 2×1445230081² = 4177379974054533122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1445230091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722615040 + 722615041.

It is an arithmetic number, because the mean of its divisors is an integer number (722615041).

Almost surely, 2^1445230081 is an apocalyptic number.

It is an amenable number.

1445230081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445230081 is an equidigital number, since it uses as much as digits as its factorization.

1445230081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1445230081 is about 38016.1818308993. The cubic root of 1445230081 is about 1130.6087202450.

The spelling of 1445230081 in words is "one billion, four hundred forty-five million, two hundred thirty thousand, eighty-one".