545442401131 has 2 divisors, whose sum is σ = 545442401132. Its totient is φ = 545442401130.

The previous prime is 545442401123. The next prime is 545442401171. The reversal of 545442401131 is 131104244545.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545442401131 - 2³ = 545442401123 is a prime.

It is a super-2 number, since 2×545442401131² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (545442401171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272721200565 + 272721200566.

It is an arithmetic number, because the mean of its divisors is an integer number (272721200566).

Almost surely, 2^545442401131 is an apocalyptic number.

545442401131 is a deficient number, since it is larger than the sum of its proper divisors (1).

545442401131 is an equidigital number, since it uses as much as digits as its factorization.

545442401131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 545442401131 its reverse (131104244545), we get a palindrome (676546645676).

The spelling of 545442401131 in words is "five hundred forty-five billion, four hundred forty-two million, four hundred one thousand, one hundred thirty-one".