164359477 has 2 divisors, whose sum is σ = 164359478. Its totient is φ = 164359476.

The previous prime is 164359409. The next prime is 164359493. The reversal of 164359477 is 774953461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137381841 + 26977636 = 11721^2 + 5194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164359477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164359277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82179738 + 82179739.

It is an arithmetic number, because the mean of its divisors is an integer number (82179739).

Almost surely, 2^164359477 is an apocalyptic number.

It is an amenable number.

164359477 is a deficient number, since it is larger than the sum of its proper divisors (1).

164359477 is an equidigital number, since it uses as much as digits as its factorization.

164359477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 46.

The square root of 164359477 is about 12820.2760110693. The cubic root of 164359477 is about 547.7700086702.

It can be divided in two parts, 164359 and 477, that added together give a square (164836 = 406²).

The spelling of 164359477 in words is "one hundred sixty-four million, three hundred fifty-nine thousand, four hundred seventy-seven".