45135047 has 4 divisors (see below), whose sum is σ = 45549240. Its totient is φ = 44720856.

The previous prime is 45135043. The next prime is 45135067. The reversal of 45135047 is 74053154.

45135047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45135047 - 2² = 45135043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45135043) 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 3 ways as a sum of consecutive naturals, for example, 206933 + ... + 207150.

It is an arithmetic number, because the mean of its divisors is an integer number (11387310).

Almost surely, 2^45135047 is an apocalyptic number.

45135047 is a deficient number, since it is larger than the sum of its proper divisors (414193).

45135047 is a wasteful number, since it uses less digits than its factorization.

45135047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414192.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 45135047 is about 6718.2622008969. The cubic root of 45135047 is about 356.0447882672.

The spelling of 45135047 in words is "forty-five million, one hundred thirty-five thousand, forty-seven".