45216071 has 4 divisors (see below), whose sum is σ = 46318944. Its totient is φ = 44113200.

The previous prime is 45216047. The next prime is 45216077. The reversal of 45216071 is 17061254.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45216071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45216071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45216077) 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, 551375 + ... + 551456.

It is an arithmetic number, because the mean of its divisors is an integer number (11579736).

Almost surely, 2^45216071 is an apocalyptic number.

45216071 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

45216071 is a deficient number, since it is larger than the sum of its proper divisors (1102873).

45216071 is a wasteful number, since it uses less digits than its factorization.

45216071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102872.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 45216071 is about 6724.2896279087. The cubic root of 45216071 is about 356.2577117034.

The spelling of 45216071 in words is "forty-five million, two hundred sixteen thousand, seventy-one".