45651751 has 4 divisors (see below), whose sum is σ = 45667152. Its totient is φ = 45636352.

The previous prime is 45651731. The next prime is 45651761. The reversal of 45651751 is 15715654.

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 45651751 - 2⁵ = 45651719 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 (45651731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690 + ... + 9703.

It is an arithmetic number, because the mean of its divisors is an integer number (11416788).

Almost surely, 2^45651751 is an apocalyptic number.

45651751 is a deficient number, since it is larger than the sum of its proper divisors (15401).

45651751 is a wasteful number, since it uses less digits than its factorization.

45651751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15400.

The product of its digits is 21000, while the sum is 34.

The square root of 45651751 is about 6756.6079507398. The cubic root of 45651751 is about 357.3982979650.

The spelling of 45651751 in words is "forty-five million, six hundred fifty-one thousand, seven hundred fifty-one".