163413513 has 6 divisors (see below), whose sum is σ = 236041754. Its totient is φ = 108942336.

The previous prime is 163413499. The next prime is 163413527. The reversal of 163413513 is 315314361.

163413513 is a `hidden beast` number, since 1 + 634 + 13 + 5 + 13 = 666.

It is an interprime number because it is at equal distance from previous prime (163413499) and next prime (163413527).

It can be written as a sum of positive squares in only one way, i.e., 148644864 + 14768649 = 12192^2 + 3843^2 .

It is not a de Polignac number, because 163413513 - 2¹⁰ = 163412489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163413533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9078520 + ... + 9078537.

Almost surely, 2^163413513 is an apocalyptic number.

It is an amenable number.

163413513 is a deficient number, since it is larger than the sum of its proper divisors (72628241).

163413513 is a wasteful number, since it uses less digits than its factorization.

163413513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18157063 (or 18157060 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 163413513 is about 12783.3294958708. The cubic root of 163413513 is about 546.7170970645.

Adding to 163413513 its reverse (315314361), we get a palindrome (478727874).

The spelling of 163413513 in words is "one hundred sixty-three million, four hundred thirteen thousand, five hundred thirteen".