545046631 has 4 divisors (see below), whose sum is σ = 545117472. Its totient is φ = 544975792.

The previous prime is 545046611. The next prime is 545046637. The reversal of 545046631 is 136640545.

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

It is a cyclic number.

It is not a de Polignac number, because 545046631 - 2⁵ = 545046599 is a prime.

It is a super-2 number, since 2×545046631² = 594151659928900322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545046637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22246 + ... + 39811.

It is an arithmetic number, because the mean of its divisors is an integer number (136279368).

Almost surely, 2^545046631 is an apocalyptic number.

545046631 is a deficient number, since it is larger than the sum of its proper divisors (70841).

545046631 is an equidigital number, since it uses as much as digits as its factorization.

545046631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70840.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 545046631 is about 23346.2337647853. The cubic root of 545046631 is about 816.8542127834.

The spelling of 545046631 in words is "five hundred forty-five million, forty-six thousand, six hundred thirty-one".