164125061 has 2 divisors, whose sum is σ = 164125062. Its totient is φ = 164125060.

The previous prime is 164125037. The next prime is 164125069. The reversal of 164125061 is 160521461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160149025 + 3976036 = 12655^2 + 1994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164125061 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 164125061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164125069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82062530 + 82062531.

It is an arithmetic number, because the mean of its divisors is an integer number (82062531).

Almost surely, 2^164125061 is an apocalyptic number.

It is an amenable number.

164125061 is a deficient number, since it is larger than the sum of its proper divisors (1).

164125061 is an equidigital number, since it uses as much as digits as its factorization.

164125061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 164125061 is about 12811.1303560615. The cubic root of 164125061 is about 547.5094676678.

The spelling of 164125061 in words is "one hundred sixty-four million, one hundred twenty-five thousand, sixty-one".