163434501 has 6 divisors (see below), whose sum is σ = 236072070. Its totient is φ = 108956328.

The previous prime is 163434497. The next prime is 163434503. The reversal of 163434501 is 105434361.

It can be written as a sum of positive squares in only one way, i.e., 132365025 + 31069476 = 11505^2 + 5574^2 .

It is not a de Polignac number, because 163434501 - 2² = 163434497 is a prime.

It is a super-2 number, since 2×163434501² = 53421672234238002, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163434503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9079686 + ... + 9079703.

It is an arithmetic number, because the mean of its divisors is an integer number (39345345).

Almost surely, 2^163434501 is an apocalyptic number.

It is an amenable number.

163434501 is a deficient number, since it is larger than the sum of its proper divisors (72637569).

163434501 is a wasteful number, since it uses less digits than its factorization.

163434501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18159395 (or 18159392 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 163434501 is about 12784.1503824071. The cubic root of 163434501 is about 546.7405019164.

Adding to 163434501 its reverse (105434361), we get a palindrome (268868862).

The spelling of 163434501 in words is "one hundred sixty-three million, four hundred thirty-four thousand, five hundred one".