212974859 has 2 divisors, whose sum is σ = 212974860. Its totient is φ = 212974858.

The previous prime is 212974847. The next prime is 212974873. The reversal of 212974859 is 958479212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212974859 - 2¹² = 212970763 is a prime.

It is not a weakly prime, because it can be changed into another prime (212974159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106487429 + 106487430.

It is an arithmetic number, because the mean of its divisors is an integer number (106487430).

Almost surely, 2^212974859 is an apocalyptic number.

212974859 is a deficient number, since it is larger than the sum of its proper divisors (1).

212974859 is an equidigital number, since it uses as much as digits as its factorization.

212974859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The square root of 212974859 is about 14593.6581774413. The cubic root of 212974859 is about 597.1857642849.

The spelling of 212974859 in words is "two hundred twelve million, nine hundred seventy-four thousand, eight hundred fifty-nine".