1442155420553 has 2 divisors, whose sum is σ = 1442155420554. Its totient is φ = 1442155420552.

The previous prime is 1442155420529. The next prime is 1442155420561. The reversal of 1442155420553 is 3550245512441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1008022024009 + 434133396544 = 1004003^2 + 658888^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442155420553 - 2⁸ = 1442155420297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1442155420553.

It is not a weakly prime, because it can be changed into another prime (1442155429553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721077710276 + 721077710277.

It is an arithmetic number, because the mean of its divisors is an integer number (721077710277).

Almost surely, 2^{1442155420553} is an apocalyptic number.

It is an amenable number.

1442155420553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442155420553 is an equidigital number, since it uses as much as digits as its factorization.

1442155420553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 1442155420553 in words is "one trillion, four hundred forty-two billion, one hundred fifty-five million, four hundred twenty thousand, five hundred fifty-three".