545916731 has 4 divisors (see below), whose sum is σ = 546377832. Its totient is φ = 545455632.

The previous prime is 545916719. The next prime is 545916743. The reversal of 545916731 is 137619545.

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

It is an interprime number because it is at equal distance from previous prime (545916719) and next prime (545916743).

It is a cyclic number.

It is not a de Polignac number, because 545916731 - 2¹⁰ = 545915707 is a prime.

It is a super-2 number, since 2×545916731² = 596050154371452722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545916031) 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, 228770 + ... + 231143.

It is an arithmetic number, because the mean of its divisors is an integer number (136594458).

Almost surely, 2^545916731 is an apocalyptic number.

545916731 is a deficient number, since it is larger than the sum of its proper divisors (461101).

545916731 is a wasteful number, since it uses less digits than its factorization.

545916731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461100.

The product of its digits is 113400, while the sum is 41.

The square root of 545916731 is about 23364.8610310440. The cubic root of 545916731 is about 817.2886508294.

The spelling of 545916731 in words is "five hundred forty-five million, nine hundred sixteen thousand, seven hundred thirty-one".