1442457621001 has 4 divisors (see below), whose sum is σ = 1442986190100. Its totient is φ = 1441929051904.

The previous prime is 1442457620971. The next prime is 1442457621119. The reversal of 1442457621001 is 1001267542441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1223952792976 + 218504828025 = 1106324^2 + 467445^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442457621001 - 2¹⁷ = 1442457489929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442457625001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264280456 + ... + 264285913.

It is an arithmetic number, because the mean of its divisors is an integer number (360746547525).

Almost surely, 2^{1442457621001} is an apocalyptic number.

It is an amenable number.

1442457621001 is a deficient number, since it is larger than the sum of its proper divisors (528569099).

1442457621001 is an equidigital number, since it uses as much as digits as its factorization.

1442457621001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528569098.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 1442457621001 in words is "one trillion, four hundred forty-two billion, four hundred fifty-seven million, six hundred twenty-one thousand, one".