45051761 has 4 divisors (see below), whose sum is σ = 46605300. Its totient is φ = 43498224.

The previous prime is 45051737. The next prime is 45051763. The reversal of 45051761 is 16715054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30459361 + 14592400 = 5519^2 + 3820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45051761 is a prime.

It is a super-2 number, since 2×45051761² = 4059322338402242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 1553509 = 45051761 / (4 + 5 + 0 + 5 + 1 + 7 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45051763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776726 + ... + 776783.

It is an arithmetic number, because the mean of its divisors is an integer number (11651325).

Almost surely, 2^45051761 is an apocalyptic number.

It is an amenable number.

45051761 is a deficient number, since it is larger than the sum of its proper divisors (1553539).

45051761 is a wasteful number, since it uses less digits than its factorization.

45051761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553538.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 45051761 is about 6712.0608608683. The cubic root of 45051761 is about 355.8256547524.

The spelling of 45051761 in words is "forty-five million, fifty-one thousand, seven hundred sixty-one".