545456831 has 2 divisors, whose sum is σ = 545456832. Its totient is φ = 545456830.

The previous prime is 545456797. The next prime is 545456833. The reversal of 545456831 is 138654545.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545456831 is a prime.

It is a super-2 number, since 2×545456831² = 595046308969125122, which contains 22 as substring.

Together with 545456833, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545456833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272728415 + 272728416.

It is an arithmetic number, because the mean of its divisors is an integer number (272728416).

Almost surely, 2^545456831 is an apocalyptic number.

545456831 is a deficient number, since it is larger than the sum of its proper divisors (1).

545456831 is an equidigital number, since it uses as much as digits as its factorization.

545456831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288000, while the sum is 41.

The square root of 545456831 is about 23355.0172553993. The cubic root of 545456831 is about 817.0590818446.

The spelling of 545456831 in words is "five hundred forty-five million, four hundred fifty-six thousand, eight hundred thirty-one".