1445655272 has 8 divisors (see below), whose sum is σ = 2710603650. Its totient is φ = 722827632.

The previous prime is 1445655269. The next prime is 1445655293. The reversal of 1445655272 is 2725565441.

It can be written as a sum of positive squares in only one way, i.e., 1324523236 + 121132036 = 36394^2 + 11006^2 .

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

It is a super-2 number, since 2×1445655272² = 4179838330922787968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90353447 + ... + 90353462.

Almost surely, 2^1445655272 is an apocalyptic number.

It is an amenable number.

1445655272 is a deficient number, since it is larger than the sum of its proper divisors (1264948378).

1445655272 is a wasteful number, since it uses less digits than its factorization.

1445655272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180706915 (or 180706911 counting only the distinct ones).

The product of its digits is 336000, while the sum is 41.

The square root of 1445655272 is about 38021.7736566826. The cubic root of 1445655272 is about 1130.7195855259.

The spelling of 1445655272 in words is "one billion, four hundred forty-five million, six hundred fifty-five thousand, two hundred seventy-two".