1445662545 has 32 divisors (see below), whose sum is σ = 2359203840. Its totient is φ = 755716800.

The previous prime is 1445662523. The next prime is 1445662549. The reversal of 1445662545 is 5452665441.

It is not a de Polignac number, because 1445662545 - 2⁵ = 1445662513 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1445662497 and 1445662506.

It is not an unprimeable number, because it can be changed into a prime (1445662549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322570 + ... + 327020.

It is an arithmetic number, because the mean of its divisors is an integer number (73725120).

Almost surely, 2^1445662545 is an apocalyptic number.

1445662545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1445662545 is a deficient number, since it is larger than the sum of its proper divisors (913541295).

1445662545 is a wasteful number, since it uses less digits than its factorization.

1445662545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4885.

The product of its digits is 576000, while the sum is 42.

The square root of 1445662545 is about 38021.8692991284. The cubic root of 1445662545 is about 1130.7214817156.

The spelling of 1445662545 in words is "one billion, four hundred forty-five million, six hundred sixty-two thousand, five hundred forty-five".