211414157 has 2 divisors, whose sum is σ = 211414158. Its totient is φ = 211414156.

The previous prime is 211414103. The next prime is 211414199. The reversal of 211414157 is 751414112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211149961 + 264196 = 14531^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 211414157 - 2²⁰ = 210365581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211414457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105707078 + 105707079.

It is an arithmetic number, because the mean of its divisors is an integer number (105707079).

Almost surely, 2^211414157 is an apocalyptic number.

It is an amenable number.

211414157 is a deficient number, since it is larger than the sum of its proper divisors (1).

211414157 is an equidigital number, since it uses as much as digits as its factorization.

211414157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 26.

The square root of 211414157 is about 14540.0879295828. The cubic root of 211414157 is about 595.7234398836.

Adding to 211414157 its reverse (751414112), we get a palindrome (962828269).

The spelling of 211414157 in words is "two hundred eleven million, four hundred fourteen thousand, one hundred fifty-seven".