212058157 has 2 divisors, whose sum is σ = 212058158. Its totient is φ = 212058156.

The previous prime is 212058139. The next prime is 212058163. The reversal of 212058157 is 751850212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122301481 + 89756676 = 11059^2 + 9474^2 .

It is a cyclic number.

It is not a de Polignac number, because 212058157 - 2⁷ = 212058029 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212056157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106029078 + 106029079.

It is an arithmetic number, because the mean of its divisors is an integer number (106029079).

Almost surely, 2^212058157 is an apocalyptic number.

It is an amenable number.

212058157 is a deficient number, since it is larger than the sum of its proper divisors (1).

212058157 is an equidigital number, since it uses as much as digits as its factorization.

212058157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 212058157 is about 14562.2167611940. The cubic root of 212058157 is about 596.3277150979.

The spelling of 212058157 in words is "two hundred twelve million, fifty-eight thousand, one hundred fifty-seven".