885716145 has 12 divisors (see below), whose sum is σ = 1535241396. Its totient is φ = 472381920.

The previous prime is 885716129. The next prime is 885716149. The reversal of 885716145 is 541617588.

It can be written as a sum of positive squares in 2 ways, for example, as 344176704 + 541539441 = 18552^2 + 23271^2 .

It is not a de Polignac number, because 885716145 - 2⁴ = 885716129 is a prime.

It is a super-2 number, since 2×885716145² = 1568986179027322050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 19682581 = 885716145 / (8 + 8 + 5 + 7 + 1 + 6 + 1 + 4 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 885716145.

It is not an unprimeable number, because it can be changed into a prime (885716149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9841246 + ... + 9841335.

It is an arithmetic number, because the mean of its divisors is an integer number (127936783).

Almost surely, 2^885716145 is an apocalyptic number.

It is an amenable number.

885716145 is a deficient number, since it is larger than the sum of its proper divisors (649525251).

885716145 is a wasteful number, since it uses less digits than its factorization.

885716145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19682592 (or 19682589 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 885716145 is about 29760.9836026970. The cubic root of 885716145 is about 960.3543776313.

The spelling of 885716145 in words is "eight hundred eighty-five million, seven hundred sixteen thousand, one hundred forty-five".