401131166 has 8 divisors (see below), whose sum is σ = 603595800. Its totient is φ = 199932568.

The previous prime is 401131079. The next prime is 401131183. The reversal of 401131166 is 661131104.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 315716 + ... + 316983.

It is an arithmetic number, because the mean of its divisors is an integer number (75449475).

Almost surely, 2^401131166 is an apocalyptic number.

401131166 is a deficient number, since it is larger than the sum of its proper divisors (202464634).

401131166 is a wasteful number, since it uses less digits than its factorization.

401131166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633018.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 401131166 is about 20028.2591854609. The cubic root of 401131166 is about 737.5001879153.

The spelling of 401131166 in words is "four hundred one million, one hundred thirty-one thousand, one hundred sixty-six".