164883491 has 2 divisors, whose sum is σ = 164883492. Its totient is φ = 164883490.

The previous prime is 164883487. The next prime is 164883497. The reversal of 164883491 is 194388461.

It is a weak prime.

It is an emirp because it is prime and its reverse (194388461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164883491 - 2² = 164883487 is a prime.

It is not a weakly prime, because it can be changed into another prime (164883497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82441745 + 82441746.

It is an arithmetic number, because the mean of its divisors is an integer number (82441746).

Almost surely, 2^164883491 is an apocalyptic number.

164883491 is a deficient number, since it is larger than the sum of its proper divisors (1).

164883491 is an equidigital number, since it uses as much as digits as its factorization.

164883491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 44.

The square root of 164883491 is about 12840.6966711312. The cubic root of 164883491 is about 548.3515280119.

The spelling of 164883491 in words is "one hundred sixty-four million, eight hundred eighty-three thousand, four hundred ninety-one".