1446131643 has 32 divisors (see below), whose sum is σ = 2180701440. Its totient is φ = 844709760.

The previous prime is 1446131627. The next prime is 1446131671. The reversal of 1446131643 is 3461316441.

It is not a de Polignac number, because 1446131643 - 2⁴ = 1446131627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1446131683) 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, 125113 + ... + 136181.

It is an arithmetic number, because the mean of its divisors is an integer number (68146920).

Almost surely, 2^1446131643 is an apocalyptic number.

1446131643 is a deficient number, since it is larger than the sum of its proper divisors (734569797).

1446131643 is a wasteful number, since it uses less digits than its factorization.

1446131643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11227.

The product of its digits is 20736, while the sum is 33.

The square root of 1446131643 is about 38028.0375907040. The cubic root of 1446131643 is about 1130.8437697803.

It can be divided in two parts, 1 and 446131643, that added together give a palindrome (446131644).

The spelling of 1446131643 in words is "one billion, four hundred forty-six million, one hundred thirty-one thousand, six hundred forty-three".