400143000155 has 16 divisors (see below), whose sum is σ = 482766955200. Its totient is φ = 318385381248.

The previous prime is 400143000137. The next prime is 400143000203. The reversal of 400143000155 is 551000341004.

It is a cyclic number.

It is not a de Polignac number, because 400143000155 - 2¹⁸ = 400142738011 is a prime.

It is a super-2 number, since 2×400143000155² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400143000155.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2604869 + ... + 2754201.

It is an arithmetic number, because the mean of its divisors is an integer number (30172934700).

Almost surely, 2^400143000155 is an apocalyptic number.

400143000155 is a deficient number, since it is larger than the sum of its proper divisors (82623955045).

400143000155 is a wasteful number, since it uses less digits than its factorization.

400143000155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152230.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 400143000155 its reverse (551000341004), we get a palindrome (951143341159).

The spelling of 400143000155 in words is "four hundred billion, one hundred forty-three million, one hundred fifty-five", and thus it is an aban number.