401255155 has 16 divisors (see below), whose sum is σ = 552397824. Its totient is φ = 274093920.

The previous prime is 401255149. The next prime is 401255159. The reversal of 401255155 is 551552104.

It is not a de Polignac number, because 401255155 - 2¹⁵ = 401222387 is a prime.

It is a super-2 number, since 2×401255155² = 322011398828148050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401255159) 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 15 ways as a sum of consecutive naturals, for example, 12591 + ... + 31000.

It is an arithmetic number, because the mean of its divisors is an integer number (34524864).

Almost surely, 2^401255155 is an apocalyptic number.

401255155 is a deficient number, since it is larger than the sum of its proper divisors (151142669).

401255155 is a wasteful number, since it uses less digits than its factorization.

401255155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43866.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 401255155 is about 20031.3542977004. The cubic root of 401255155 is about 737.5761667959.

The spelling of 401255155 in words is "four hundred one million, two hundred fifty-five thousand, one hundred fifty-five".