252443335141 has 4 divisors (see below), whose sum is σ = 252452596972. Its totient is φ = 252434073312.

The previous prime is 252443335129. The next prime is 252443335147. The reversal of 252443335141 is 141533344252.

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 154268272900 + 98175062241 = 392770^2 + 313329^2 .

It is a cyclic number.

It is not a de Polignac number, because 252443335141 - 2⁷ = 252443335013 is a prime.

It is a super-2 number, since 2×252443335141² (a number of 24 digits) contains 22 as substring.

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 252443335141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252443335147) 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, 4589910 + ... + 4644583.

It is an arithmetic number, because the mean of its divisors is an integer number (63113149243).

Almost surely, 2^252443335141 is an apocalyptic number.

It is an amenable number.

252443335141 is a deficient number, since it is larger than the sum of its proper divisors (9261831).

252443335141 is an equidigital number, since it uses as much as digits as its factorization.

252443335141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9261830.

The product of its digits is 172800, while the sum is 37.

Adding to 252443335141 its reverse (141533344252), we get a palindrome (393976679393).

The spelling of 252443335141 in words is "two hundred fifty-two billion, four hundred forty-three million, three hundred thirty-five thousand, one hundred forty-one".