164371433 has 2 divisors, whose sum is σ = 164371434. Its totient is φ = 164371432.

The previous prime is 164371423. The next prime is 164371439. The reversal of 164371433 is 334173461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128754409 + 35617024 = 11347^2 + 5968^2 .

It is an emirp because it is prime and its reverse (334173461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164371433 - 2⁶ = 164371369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164371433.

It is not a weakly prime, because it can be changed into another prime (164371439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82185716 + 82185717.

It is an arithmetic number, because the mean of its divisors is an integer number (82185717).

Almost surely, 2^164371433 is an apocalyptic number.

It is an amenable number.

164371433 is a deficient number, since it is larger than the sum of its proper divisors (1).

164371433 is an equidigital number, since it uses as much as digits as its factorization.

164371433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 164371433 is about 12820.7422952027. The cubic root of 164371433 is about 547.7832904912.

The spelling of 164371433 in words is "one hundred sixty-four million, three hundred seventy-one thousand, four hundred thirty-three".