45020871 has 24 divisors (see below), whose sum is σ = 76053120. Its totient is φ = 25126416.

The previous prime is 45020869. The next prime is 45020873. The reversal of 45020871 is 17802054.

45020871 is a `hidden beast` number, since 450 + 208 + 7 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (45020869) and next prime (45020873).

It is not a de Polignac number, because 45020871 - 2¹ = 45020869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45020873) 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 23 ways as a sum of consecutive naturals, for example, 5601 + ... + 11018.

It is an arithmetic number, because the mean of its divisors is an integer number (3168880).

Almost surely, 2^45020871 is an apocalyptic number.

45020871 is a deficient number, since it is larger than the sum of its proper divisors (31032249).

45020871 is a wasteful number, since it uses less digits than its factorization.

45020871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16675 (or 16672 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 45020871 is about 6709.7593846575. The cubic root of 45020871 is about 355.7443115203.

It can be divided in two parts, 450 and 20871, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 45020871 in words is "forty-five million, twenty thousand, eight hundred seventy-one".