161276211 has 16 divisors (see below), whose sum is σ = 239125120. Its totient is φ = 107428680.

The previous prime is 161276201. The next prime is 161276233. The reversal of 161276211 is 112672161.

It is a happy number.

161276211 is a `hidden beast` number, since 16 + 1 + 27 + 621 + 1 = 666.

161276211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161276211 - 2¹⁰ = 161275187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161276201) 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, 56136 + ... + 58938.

It is an arithmetic number, because the mean of its divisors is an integer number (14945320).

Almost surely, 2^161276211 is an apocalyptic number.

161276211 is a deficient number, since it is larger than the sum of its proper divisors (77848909).

161276211 is a wasteful number, since it uses less digits than its factorization.

161276211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943 (or 4937 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 161276211 is about 12699.4571143809. The cubic root of 161276211 is about 544.3231065602.

The spelling of 161276211 in words is "one hundred sixty-one million, two hundred seventy-six thousand, two hundred eleven".