214155131401 has 4 divisors (see below), whose sum is σ = 217088763412. Its totient is φ = 211221499392.

The previous prime is 214155131383. The next prime is 214155131413. The reversal of 214155131401 is 104131551412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 149525289225 + 64629842176 = 386685^2 + 254224^2 .

It is a cyclic number.

It is not a de Polignac number, because 214155131401 - 2⁵ = 214155131369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214155131401.

It is not an unprimeable number, because it can be changed into a prime (214155135401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466815896 + ... + 1466816041.

It is an arithmetic number, because the mean of its divisors is an integer number (54272190853).

Almost surely, 2^214155131401 is an apocalyptic number.

It is an amenable number.

214155131401 is a deficient number, since it is larger than the sum of its proper divisors (2933632011).

214155131401 is an equidigital number, since it uses as much as digits as its factorization.

214155131401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933632010.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 214155131401 its reverse (104131551412), we get a palindrome (318286682813).

The spelling of 214155131401 in words is "two hundred fourteen billion, one hundred fifty-five million, one hundred thirty-one thousand, four hundred one".