401542163 has 8 divisors (see below), whose sum is σ = 452176896. Its totient is φ = 353262600.

The previous prime is 401542153. The next prime is 401542171. The reversal of 401542163 is 361245104.

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

It is a cyclic number.

It is not a de Polignac number, because 401542163 - 2⁴ = 401542147 is a prime.

It is a super-2 number, since 2×401542163² = 322472217333437138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401542153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588431 + ... + 589112.

It is an arithmetic number, because the mean of its divisors is an integer number (56522112).

Almost surely, 2^401542163 is an apocalyptic number.

401542163 is a deficient number, since it is larger than the sum of its proper divisors (50634733).

401542163 is a wasteful number, since it uses less digits than its factorization.

401542163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177585.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 401542163 is about 20038.5169860447. The cubic root of 401542163 is about 737.7519816156.

Adding to 401542163 its reverse (361245104), we get a palindrome (762787267).

The spelling of 401542163 in words is "four hundred one million, five hundred forty-two thousand, one hundred sixty-three".