45661447 has 16 divisors (see below), whose sum is σ = 50279040. Its totient is φ = 41213952.

The previous prime is 45661391. The next prime is 45661471. The reversal of 45661447 is 74416654.

It is a de Polignac number, because none of the positive numbers 2^k-45661447 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 (45661477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177543 + ... + 177799.

It is an arithmetic number, because the mean of its divisors is an integer number (3142440).

Almost surely, 2^45661447 is an apocalyptic number.

45661447 is a deficient number, since it is larger than the sum of its proper divisors (4617593).

45661447 is a wasteful number, since it uses less digits than its factorization.

45661447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522.

The product of its digits is 80640, while the sum is 37.

The square root of 45661447 is about 6757.3254324474. The cubic root of 45661447 is about 357.4235988462.

The spelling of 45661447 in words is "forty-five million, six hundred sixty-one thousand, four hundred forty-seven".