920227161 has 8 divisors (see below), whose sum is σ = 1402250944. Its totient is φ = 525844080.

The previous prime is 920227127. The next prime is 920227183. The reversal of 920227161 is 161722029.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-920227161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920227961) 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 7 ways as a sum of consecutive naturals, for example, 21910150 + ... + 21910191.

It is an arithmetic number, because the mean of its divisors is an integer number (175281368).

Almost surely, 2^920227161 is an apocalyptic number.

It is an amenable number.

920227161 is a deficient number, since it is larger than the sum of its proper divisors (482023783).

920227161 is a wasteful number, since it uses less digits than its factorization.

920227161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43820351.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 920227161 is about 30335.2461832766. The cubic root of 920227161 is about 972.6688682728.

It can be divided in two parts, 9202 and 27161, that added together give a palindrome (36363).

The spelling of 920227161 in words is "nine hundred twenty million, two hundred twenty-seven thousand, one hundred sixty-one".