545351 has 4 divisors (see below), whose sum is σ = 553104. Its totient is φ = 537600.

The previous prime is 545329. The next prime is 545371. The reversal of 545351 is 153545.

Added to its reverse (153545) it gives a square (698896 = 836²).

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 545351 - 2¹⁴ = 528967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545371) 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, 3770 + ... + 3911.

It is an arithmetic number, because the mean of its divisors is an integer number (138276).

2⁵⁴⁵³⁵¹ is an apocalyptic number.

545351 is a deficient number, since it is larger than the sum of its proper divisors (7753).

545351 is an equidigital number, since it uses as much as digits as its factorization.

545351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7752.

The product of its digits is 1500, while the sum is 23.

The square root of 545351 is about 738.4788419447. The cubic root of 545351 is about 81.7006235761.

Adding to 545351 its reverse (153545), we get a palindrome (698896).

The spelling of 545351 in words is "five hundred forty-five thousand, three hundred fifty-one".