163461431 has 8 divisors (see below), whose sum is σ = 186892800. Its totient is φ = 140050008.

The previous prime is 163461401. The next prime is 163461457. The reversal of 163461431 is 134164361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163461431 - 2¹⁸ = 163199287 is a prime.

It is a super-2 number, since 2×163461431² = 53439278849135522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163461394 and 163461403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163461401) 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 7 ways as a sum of consecutive naturals, for example, 23270 + ... + 29468.

It is an arithmetic number, because the mean of its divisors is an integer number (23361600).

Almost surely, 2^163461431 is an apocalyptic number.

163461431 is a deficient number, since it is larger than the sum of its proper divisors (23431369).

163461431 is an equidigital number, since it uses as much as digits as its factorization.

163461431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9973.

The product of its digits is 5184, while the sum is 29.

The square root of 163461431 is about 12785.2035963453. The cubic root of 163461431 is about 546.7705300786.

The spelling of 163461431 in words is "one hundred sixty-three million, four hundred sixty-one thousand, four hundred thirty-one".