899220151 has 4 divisors (see below), whose sum is σ = 952115472. Its totient is φ = 846324832.

The previous prime is 899220143. The next prime is 899220173. The reversal of 899220151 is 151022998.

899220151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 899220151 - 2³ = 899220143 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 899220151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899220191) 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, 26447635 + ... + 26447668.

It is an arithmetic number, because the mean of its divisors is an integer number (238028868).

Almost surely, 2^899220151 is an apocalyptic number.

899220151 is a deficient number, since it is larger than the sum of its proper divisors (52895321).

899220151 is a wasteful number, since it uses less digits than its factorization.

899220151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52895320.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 899220151 is about 29986.9996998699. Note that the first 3 decimals coincide. The cubic root of 899220151 is about 965.2104388617.

The spelling of 899220151 in words is "eight hundred ninety-nine million, two hundred twenty thousand, one hundred fifty-one".