45531727 has 4 divisors (see below), whose sum is σ = 45821896. Its totient is φ = 45241560.

The previous prime is 45531713. The next prime is 45531749. The reversal of 45531727 is 72713554.

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 45531727 - 2¹⁹ = 45007439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45531692 and 45531701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45531757) 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, 144849 + ... + 145162.

It is an arithmetic number, because the mean of its divisors is an integer number (11455474).

Almost surely, 2^45531727 is an apocalyptic number.

45531727 is a deficient number, since it is larger than the sum of its proper divisors (290169).

45531727 is a wasteful number, since it uses less digits than its factorization.

45531727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290168.

The product of its digits is 29400, while the sum is 34.

The square root of 45531727 is about 6747.7201334969. The cubic root of 45531727 is about 357.0848085541.

The spelling of 45531727 in words is "forty-five million, five hundred thirty-one thousand, seven hundred twenty-seven".