211157127 has 12 divisors (see below), whose sum is σ = 321057880. Its totient is φ = 133362288.

The previous prime is 211157101. The next prime is 211157129. The reversal of 211157127 is 721751112.

It is not a de Polignac number, because 211157127 - 2²⁶ = 144048263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211157127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211157129) 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, 617248 + ... + 617589.

Almost surely, 2^211157127 is an apocalyptic number.

211157127 is a deficient number, since it is larger than the sum of its proper divisors (109900753).

211157127 is a wasteful number, since it uses less digits than its factorization.

211157127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234862 (or 1234859 counting only the distinct ones).

The product of its digits is 980, while the sum is 27.

The square root of 211157127 is about 14531.2465741931. The cubic root of 211157127 is about 595.4819220148.

The spelling of 211157127 in words is "two hundred eleven million, one hundred fifty-seven thousand, one hundred twenty-seven".