45047751 has 8 divisors (see below), whose sum is σ = 68644224. Its totient is φ = 25741560.

The previous prime is 45047747. The next prime is 45047753. The reversal of 45047751 is 15774054.

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

It is not a de Polignac number, because 45047751 - 2² = 45047747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45047753) 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, 1072545 + ... + 1072586.

It is an arithmetic number, because the mean of its divisors is an integer number (8580528).

Almost surely, 2^45047751 is an apocalyptic number.

45047751 is a deficient number, since it is larger than the sum of its proper divisors (23596473).

45047751 is a wasteful number, since it uses less digits than its factorization.

45047751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145141.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 45047751 is about 6711.7621382168. The cubic root of 45047751 is about 355.8150972427.

The spelling of 45047751 in words is "forty-five million, forty-seven thousand, seven hundred fifty-one".