400105135 has 8 divisors (see below), whose sum is σ = 505396080. Its totient is φ = 303237504.

The previous prime is 400105133. The next prime is 400105157. The reversal of 400105135 is 531501004.

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 400105135 - 2¹ = 400105133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400105133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2105722 + ... + 2105911.

It is an arithmetic number, because the mean of its divisors is an integer number (63174510).

Almost surely, 2^400105135 is an apocalyptic number.

400105135 is a deficient number, since it is larger than the sum of its proper divisors (105290945).

400105135 is a wasteful number, since it uses less digits than its factorization.

400105135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211657.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 400105135 is about 20002.6282023138. The cubic root of 400105135 is about 736.8708475151.

Adding to 400105135 its reverse (531501004), we get a palindrome (931606139).

The spelling of 400105135 in words is "four hundred million, one hundred five thousand, one hundred thirty-five".