1445844156 has 24 divisors (see below), whose sum is σ = 3381439824. Its totient is φ = 480833280.

The previous prime is 1445844119. The next prime is 1445844161. The reversal of 1445844156 is 6514485441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133935 + ... + 144326.

It is an arithmetic number, because the mean of its divisors is an integer number (140893326).

Almost surely, 2^1445844156 is an apocalyptic number.

It is an amenable number.

1445844156 is an abundant number, since it is smaller than the sum of its proper divisors (1935595668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1445844156 is a wasteful number, since it uses less digits than its factorization.

1445844156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278701 (or 278699 counting only the distinct ones).

The product of its digits is 307200, while the sum is 42.

The square root of 1445844156 is about 38024.2574680953. The cubic root of 1445844156 is about 1130.7688286019.

The spelling of 1445844156 in words is "one billion, four hundred forty-five million, eight hundred forty-four thousand, one hundred fifty-six".