164226551 has 2 divisors, whose sum is σ = 164226552. Its totient is φ = 164226550.

The previous prime is 164226533. The next prime is 164226571. The reversal of 164226551 is 155622461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164226551 - 2²⁶ = 97117687 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164226571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82113275 + 82113276.

It is an arithmetic number, because the mean of its divisors is an integer number (82113276).

Almost surely, 2^164226551 is an apocalyptic number.

164226551 is a deficient number, since it is larger than the sum of its proper divisors (1).

164226551 is an equidigital number, since it uses as much as digits as its factorization.

164226551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 32.

The square root of 164226551 is about 12815.0907527025. The cubic root of 164226551 is about 547.6222988748.

The spelling of 164226551 in words is "one hundred sixty-four million, two hundred twenty-six thousand, five hundred fifty-one".