252145344401 has 4 divisors (see below), whose sum is σ = 252249410112. Its totient is φ = 252041278692.

The previous prime is 252145344389. The next prime is 252145344463. The reversal of 252145344401 is 104443541252.

It is a happy number.

252145344401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252145344401 - 2²⁶ = 252078235537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252145344481) 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 3 ways as a sum of consecutive naturals, for example, 52029221 + ... + 52034066.

It is an arithmetic number, because the mean of its divisors is an integer number (63062352528).

Almost surely, 2^252145344401 is an apocalyptic number.

It is an amenable number.

252145344401 is a deficient number, since it is larger than the sum of its proper divisors (104065711).

252145344401 is a wasteful number, since it uses less digits than its factorization.

252145344401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104065710.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 252145344401 its reverse (104443541252), we get a palindrome (356588885653).

The spelling of 252145344401 in words is "two hundred fifty-two billion, one hundred forty-five million, three hundred forty-four thousand, four hundred one".