39540545 has 8 divisors (see below), whose sum is σ = 51762240. Its totient is φ = 28756720.

The previous prime is 39540541. The next prime is 39540551. The reversal of 39540545 is 54504593.

39540545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 39540545 - 2² = 39540541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39540541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359405 + ... + 359514.

It is an arithmetic number, because the mean of its divisors is an integer number (6470280).

Almost surely, 2^39540545 is an apocalyptic number.

It is an amenable number.

39540545 is a deficient number, since it is larger than the sum of its proper divisors (12221695).

39540545 is a wasteful number, since it uses less digits than its factorization.

39540545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718935.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 39540545 is about 6288.1273046910. The cubic root of 39540545 is about 340.6807152361.

The spelling of 39540545 in words is "thirty-nine million, five hundred forty thousand, five hundred forty-five".