45549239 has 8 divisors (see below), whose sum is σ = 49047120. Its totient is φ = 42142336.

The previous prime is 45549211. The next prime is 45549263. The reversal of 45549239 is 93294554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45549239 - 2⁸ = 45548983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45549196 and 45549205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45549839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21704 + ... + 23709.

It is an arithmetic number, because the mean of its divisors is an integer number (6130890).

Almost surely, 2^45549239 is an apocalyptic number.

45549239 is a deficient number, since it is larger than the sum of its proper divisors (3497881).

45549239 is a wasteful number, since it uses less digits than its factorization.

45549239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45489.

The product of its digits is 194400, while the sum is 41.

The square root of 45549239 is about 6749.0176322188. The cubic root of 45549239 is about 357.1305822600.

It can be divided in two parts, 455 and 49239, that added together give a palindrome (49694).

The spelling of 45549239 in words is "forty-five million, five hundred forty-nine thousand, two hundred thirty-nine".