164851523 has 2 divisors, whose sum is σ = 164851524. Its totient is φ = 164851522.

The previous prime is 164851507. The next prime is 164851537. The reversal of 164851523 is 325158461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164851523 - 2⁴ = 164851507 is a prime.

It is not a weakly prime, because it can be changed into another prime (164851223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82425761 + 82425762.

It is an arithmetic number, because the mean of its divisors is an integer number (82425762).

Almost surely, 2^164851523 is an apocalyptic number.

164851523 is a deficient number, since it is larger than the sum of its proper divisors (1).

164851523 is an equidigital number, since it uses as much as digits as its factorization.

164851523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 35.

The square root of 164851523 is about 12839.4518185162. The cubic root of 164851523 is about 548.3160871590.

The spelling of 164851523 in words is "one hundred sixty-four million, eight hundred fifty-one thousand, five hundred twenty-three".