164121343 has 2 divisors, whose sum is σ = 164121344. Its totient is φ = 164121342.

The previous prime is 164121329. The next prime is 164121367. The reversal of 164121343 is 343121461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164121343 - 2¹³ = 164113151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164121743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82060671 + 82060672.

It is an arithmetic number, because the mean of its divisors is an integer number (82060672).

Almost surely, 2^164121343 is an apocalyptic number.

164121343 is a deficient number, since it is larger than the sum of its proper divisors (1).

164121343 is an equidigital number, since it uses as much as digits as its factorization.

164121343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 164121343 is about 12810.9852470448. The cubic root of 164121343 is about 547.5053333092.

The spelling of 164121343 in words is "one hundred sixty-four million, one hundred twenty-one thousand, three hundred forty-three".