164506843 has 2 divisors, whose sum is σ = 164506844. Its totient is φ = 164506842.

The previous prime is 164506819. The next prime is 164506861. The reversal of 164506843 is 348605461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164506843 - 2¹³ = 164498651 is a prime.

It is not a weakly prime, because it can be changed into another prime (164506873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82253421 + 82253422.

It is an arithmetic number, because the mean of its divisors is an integer number (82253422).

Almost surely, 2^164506843 is an apocalyptic number.

164506843 is a deficient number, since it is larger than the sum of its proper divisors (1).

164506843 is an equidigital number, since it uses as much as digits as its factorization.

164506843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 164506843 is about 12826.0221035206. The cubic root of 164506843 is about 547.9336713991.

The spelling of 164506843 in words is "one hundred sixty-four million, five hundred six thousand, eight hundred forty-three".