45542729 has 8 divisors (see below), whose sum is σ = 46583592. Its totient is φ = 44513280.

The previous prime is 45542723. The next prime is 45542743. The reversal of 45542729 is 92724554.

It can be written as a sum of positive squares in 4 ways, for example, as 7225 + 45535504 = 85^2 + 6748^2 .

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-45542729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45542692 and 45542701.

It is not an unprimeable number, because it can be changed into a prime (45542723) 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, 5489 + ... + 11009.

It is an arithmetic number, because the mean of its divisors is an integer number (5822949).

Almost surely, 2^45542729 is an apocalyptic number.

It is an amenable number.

45542729 is a deficient number, since it is larger than the sum of its proper divisors (1040863).

45542729 is a wasteful number, since it uses less digits than its factorization.

45542729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5707.

The product of its digits is 100800, while the sum is 38.

The square root of 45542729 is about 6748.5353225719. The cubic root of 45542729 is about 357.1135674799.

The spelling of 45542729 in words is "forty-five million, five hundred forty-two thousand, seven hundred twenty-nine".