212401339 has 2 divisors, whose sum is σ = 212401340. Its totient is φ = 212401338.

The previous prime is 212401309. The next prime is 212401351. The reversal of 212401339 is 933104212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212401339 - 2¹³ = 212393147 is a prime.

It is a super-2 number, since 2×212401339² = 90228657617985842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212401309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106200669 + 106200670.

It is an arithmetic number, because the mean of its divisors is an integer number (106200670).

Almost surely, 2^212401339 is an apocalyptic number.

212401339 is a deficient number, since it is larger than the sum of its proper divisors (1).

212401339 is an equidigital number, since it uses as much as digits as its factorization.

212401339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 212401339 is about 14573.9952998483. The cubic root of 212401339 is about 596.6492285337.

The spelling of 212401339 in words is "two hundred twelve million, four hundred one thousand, three hundred thirty-nine".