890151161 has 4 divisors (see below), whose sum is σ = 942513012. Its totient is φ = 837789312.

The previous prime is 890151139. The next prime is 890151187. The reversal of 890151161 is 161151098.

890151161 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, and also an emirpimes, since its reverse is a distinct semiprime: 161151098 = 2 ⋅80575549.

It can be written as a sum of positive squares in 2 ways, for example, as 435139600 + 455011561 = 20860^2 + 21331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-890151161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (890151131) 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, 26180900 + ... + 26180933.

It is an arithmetic number, because the mean of its divisors is an integer number (235628253).

Almost surely, 2^890151161 is an apocalyptic number.

It is an amenable number.

890151161 is a deficient number, since it is larger than the sum of its proper divisors (52361851).

890151161 is a wasteful number, since it uses less digits than its factorization.

890151161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52361850.

The product of its (nonzero) digits is 2160, while the sum is 32.

The square root of 890151161 is about 29835.4011369045. The cubic root of 890151161 is about 961.9546261248.

The spelling of 890151161 in words is "eight hundred ninety million, one hundred fifty-one thousand, one hundred sixty-one".