163135401 has 16 divisors (see below), whose sum is σ = 255541440. Its totient is φ = 91264320.

The previous prime is 163135381. The next prime is 163135439. The reversal of 163135401 is 104531361.

It is not a de Polignac number, because 163135401 - 2⁵ = 163135369 is a prime.

It is a super-2 number, since 2×163135401² = 53226318118861602, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163135471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189706 + ... + 190563.

It is an arithmetic number, because the mean of its divisors is an integer number (15971340).

Almost surely, 2^163135401 is an apocalyptic number.

163135401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163135401 is a deficient number, since it is larger than the sum of its proper divisors (92406039).

163135401 is a wasteful number, since it uses less digits than its factorization.

163135401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380296.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 163135401 is about 12772.4469464547. The cubic root of 163135401 is about 546.4067699668.

Adding to 163135401 its reverse (104531361), we get a palindrome (267666762).

The spelling of 163135401 in words is "one hundred sixty-three million, one hundred thirty-five thousand, four hundred one".