168464533 has 2 divisors, whose sum is σ = 168464534. Its totient is φ = 168464532.

The previous prime is 168464521. The next prime is 168464563. The reversal of 168464533 is 335464861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149646289 + 18818244 = 12233^2 + 4338^2 .

It is a cyclic number.

It is not a de Polignac number, because 168464533 - 2¹³ = 168456341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168464563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84232266 + 84232267.

It is an arithmetic number, because the mean of its divisors is an integer number (84232267).

Almost surely, 2^168464533 is an apocalyptic number.

It is an amenable number.

168464533 is a deficient number, since it is larger than the sum of its proper divisors (1).

168464533 is an equidigital number, since it uses as much as digits as its factorization.

168464533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 40.

The square root of 168464533 is about 12979.3887760557. The cubic root of 168464533 is about 552.2929431668.

The spelling of 168464533 in words is "one hundred sixty-eight million, four hundred sixty-four thousand, five hundred thirty-three".