45420547 has 8 divisors (see below), whose sum is σ = 45863840. Its totient is φ = 44979840.

The previous prime is 45420511. The next prime is 45420563. The reversal of 45420547 is 74502454.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45420547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45420577) 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, 54778 + ... + 55600.

It is an arithmetic number, because the mean of its divisors is an integer number (5732980).

Almost surely, 2^45420547 is an apocalyptic number.

45420547 is a deficient number, since it is larger than the sum of its proper divisors (443293).

45420547 is a wasteful number, since it uses less digits than its factorization.

45420547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 45420547 is about 6739.4767601053. The cubic root of 45420547 is about 356.7939267929.

The spelling of 45420547 in words is "forty-five million, four hundred twenty thousand, five hundred forty-seven".