211151061 has 12 divisors (see below), whose sum is σ = 332723040. Its totient is φ = 127970280.

The previous prime is 211151051. The next prime is 211151069. The reversal of 211151061 is 160151112.

It is a happy number.

It is not a de Polignac number, because 211151061 - 2⁶ = 211150997 is a prime.

It is a super-2 number, since 2×211151061² = 89169541122851442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211151069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1066321 + ... + 1066518.

It is an arithmetic number, because the mean of its divisors is an integer number (27726920).

Almost surely, 2^211151061 is an apocalyptic number.

It is an amenable number.

211151061 is a deficient number, since it is larger than the sum of its proper divisors (121571979).

211151061 is a wasteful number, since it uses less digits than its factorization.

211151061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132856 (or 2132853 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

The square root of 211151061 is about 14531.0378500643. The cubic root of 211151061 is about 595.4762197400.

The spelling of 211151061 in words is "two hundred eleven million, one hundred fifty-one thousand, sixty-one".