255131401 has 16 divisors (see below), whose sum is σ = 295271424. Its totient is φ = 215933184.

The previous prime is 255131381. The next prime is 255131413. The reversal of 255131401 is 104131552.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 255131401 - 2⁷ = 255131273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255131491) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 213261 + ... + 214453.

It is an arithmetic number, because the mean of its divisors is an integer number (18454464).

Almost surely, 2^255131401 is an apocalyptic number.

It is an amenable number.

255131401 is a deficient number, since it is larger than the sum of its proper divisors (40140023).

255131401 is a wasteful number, since it uses less digits than its factorization.

255131401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 255131401 is about 15972.8332176856. The cubic root of 255131401 is about 634.2414742581.

Adding to 255131401 its reverse (104131552), we get a palindrome (359262953).

The spelling of 255131401 in words is "two hundred fifty-five million, one hundred thirty-one thousand, four hundred one".