45142085 has 8 divisors (see below), whose sum is σ = 54220056. Its totient is φ = 36080640.

The previous prime is 45142079. The next prime is 45142087. The reversal of 45142085 is 58024154.

It can be written as a sum of positive squares in 4 ways, for example, as 24910081 + 20232004 = 4991^2 + 4498^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-45142085 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45142087) 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, 3005 + ... + 9965.

It is an arithmetic number, because the mean of its divisors is an integer number (6777507).

Almost surely, 2^45142085 is an apocalyptic number.

It is an amenable number.

45142085 is a deficient number, since it is larger than the sum of its proper divisors (9077971).

45142085 is a wasteful number, since it uses less digits than its factorization.

45142085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8263.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 45142085 is about 6718.7859766479. The cubic root of 45142085 is about 356.0632935689.

The spelling of 45142085 in words is "forty-five million, one hundred forty-two thousand, eighty-five".