545353231 has 4 divisors (see below), whose sum is σ = 545514264. Its totient is φ = 545192200.

The previous prime is 545353223. The next prime is 545353247. The reversal of 545353231 is 132353545.

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 545353231 - 2³ = 545353223 is a prime.

It is a super-2 number, since 2×545353231² = 594820293124278722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545353193 and 545353202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545353531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75325 + ... + 82246.

It is an arithmetic number, because the mean of its divisors is an integer number (136378566).

Almost surely, 2^545353231 is an apocalyptic number.

545353231 is a deficient number, since it is larger than the sum of its proper divisors (161033).

545353231 is a wasteful number, since it uses less digits than its factorization.

545353231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161032.

The product of its digits is 27000, while the sum is 31.

The square root of 545353231 is about 23352.7992112295. The cubic root of 545353231 is about 817.0073498677.

The spelling of 545353231 in words is "five hundred forty-five million, three hundred fifty-three thousand, two hundred thirty-one".