164255461 has 2 divisors, whose sum is σ = 164255462. Its totient is φ = 164255460.

The previous prime is 164255387. The next prime is 164255477. The reversal of 164255461 is 164552461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163456225 + 799236 = 12785^2 + 894^2 .

It is a cyclic number.

It is not a de Polignac number, because 164255461 - 2¹⁹ = 163731173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164255491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82127730 + 82127731.

It is an arithmetic number, because the mean of its divisors is an integer number (82127731).

Almost surely, 2^164255461 is an apocalyptic number.

It is an amenable number.

164255461 is a deficient number, since it is larger than the sum of its proper divisors (1).

164255461 is an equidigital number, since it uses as much as digits as its factorization.

164255461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 34.

The square root of 164255461 is about 12816.2186701070. The cubic root of 164255461 is about 547.6544309746.

The spelling of 164255461 in words is "one hundred sixty-four million, two hundred fifty-five thousand, four hundred sixty-one".