212045929 has 2 divisors, whose sum is σ = 212045930. Its totient is φ = 212045928.

The previous prime is 212045903. The next prime is 212045987. The reversal of 212045929 is 929540212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111344704 + 100701225 = 10552^2 + 10035^2 .

It is a cyclic number.

It is not a de Polignac number, because 212045929 - 2¹⁵ = 212013161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212045894 and 212045903.

It is not a weakly prime, because it can be changed into another prime (212045429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106022964 + 106022965.

It is an arithmetic number, because the mean of its divisors is an integer number (106022965).

Almost surely, 2^212045929 is an apocalyptic number.

It is an amenable number.

212045929 is a deficient number, since it is larger than the sum of its proper divisors (1).

212045929 is an equidigital number, since it uses as much as digits as its factorization.

212045929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 212045929 is about 14561.7969014816. The cubic root of 212045929 is about 596.3162527777.

The spelling of 212045929 in words is "two hundred twelve million, forty-five thousand, nine hundred twenty-nine".