168475513 has 2 divisors, whose sum is σ = 168475514. Its totient is φ = 168475512.

The previous prime is 168475481. The next prime is 168475553. The reversal of 168475513 is 315574861.

It is a happy number.

It is an a-pointer prime, because the next prime (168475553) can be obtained adding 168475513 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88962624 + 79512889 = 9432^2 + 8917^2 .

It is a cyclic number.

It is not a de Polignac number, because 168475513 - 2⁵ = 168475481 is a prime.

It is a super-2 number, since 2×168475513² = 56767996961226338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168475553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84237756 + 84237757.

It is an arithmetic number, because the mean of its divisors is an integer number (84237757).

Almost surely, 2^168475513 is an apocalyptic number.

It is an amenable number.

168475513 is a deficient number, since it is larger than the sum of its proper divisors (1).

168475513 is an equidigital number, since it uses as much as digits as its factorization.

168475513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 40.

The square root of 168475513 is about 12979.8117474792. The cubic root of 168475513 is about 552.3049418244.

The spelling of 168475513 in words is "one hundred sixty-eight million, four hundred seventy-five thousand, five hundred thirteen".