545406431 has 2 divisors, whose sum is σ = 545406432. Its totient is φ = 545406430.

The previous prime is 545406371. The next prime is 545406437. The reversal of 545406431 is 134604545.

545406431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545406431 is a prime.

It is a super-2 number, since 2×545406431² = 594936349952315522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545406437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272703215 + 272703216.

It is an arithmetic number, because the mean of its divisors is an integer number (272703216).

Almost surely, 2^545406431 is an apocalyptic number.

545406431 is a deficient number, since it is larger than the sum of its proper divisors (1).

545406431 is an equidigital number, since it uses as much as digits as its factorization.

545406431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 545406431 is about 23353.9382331974. The cubic root of 545406431 is about 817.0339157552.

The spelling of 545406431 in words is "five hundred forty-five million, four hundred six thousand, four hundred thirty-one".