1445227144 has 8 divisors (see below), whose sum is σ = 2709800910. Its totient is φ = 722613568.

The previous prime is 1445227109. The next prime is 1445227169. The reversal of 1445227144 is 4417225441.

It can be written as a sum of positive squares in only one way, i.e., 1271778244 + 173448900 = 35662^2 + 13170^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90326689 + ... + 90326704.

Almost surely, 2^1445227144 is an apocalyptic number.

It is an amenable number.

1445227144 is a deficient number, since it is larger than the sum of its proper divisors (1264573766).

1445227144 is a wasteful number, since it uses less digits than its factorization.

1445227144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180653399 (or 180653395 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 1445227144 is about 38016.1432025922. The cubic root of 1445227144 is about 1130.6079543693.

The spelling of 1445227144 in words is "one billion, four hundred forty-five million, two hundred twenty-seven thousand, one hundred forty-four".