545870949 has 16 divisors (see below), whose sum is σ = 784392000. Its totient is φ = 335673216.

The previous prime is 545870929. The next prime is 545870957. The reversal of 545870949 is 949078545.

It is not a de Polignac number, because 545870949 - 2⁷ = 545870821 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545870929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58402 + ... + 67100.

It is an arithmetic number, because the mean of its divisors is an integer number (49024500).

Almost surely, 2^545870949 is an apocalyptic number.

It is an amenable number.

545870949 is a deficient number, since it is larger than the sum of its proper divisors (238521051).

545870949 is a wasteful number, since it uses less digits than its factorization.

545870949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10324.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 545870949 is about 23363.8812914293. The cubic root of 545870949 is about 817.2658035385.

The spelling of 545870949 in words is "five hundred forty-five million, eight hundred seventy thousand, nine hundred forty-nine".