120892161 has 16 divisors (see below), whose sum is σ = 175970816. Its totient is φ = 73374336.

The previous prime is 120892159. The next prime is 120892169. The reversal of 120892161 is 161298021.

It is a happy number.

It is not a de Polignac number, because 120892161 - 2¹ = 120892159 is a prime.

It is a super-2 number, since 2×120892161² = 29229829182499842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120892169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18385 + ... + 24078.

It is an arithmetic number, because the mean of its divisors is an integer number (10998176).

Almost surely, 2^120892161 is an apocalyptic number.

It is an amenable number.

120892161 is a deficient number, since it is larger than the sum of its proper divisors (55078655).

120892161 is a wasteful number, since it uses less digits than its factorization.

120892161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42552.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 120892161 is about 10995.0971346323. The cubic root of 120892161 is about 494.4617637029.

The spelling of 120892161 in words is "one hundred twenty million, eight hundred ninety-two thousand, one hundred sixty-one".