143256401641 has 2 divisors, whose sum is σ = 143256401642. Its totient is φ = 143256401640.

The previous prime is 143256401611. The next prime is 143256401677. The reversal of 143256401641 is 146104652341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74759043241 + 68497358400 = 273421^2 + 261720^2 .

It is a cyclic number.

It is not a de Polignac number, because 143256401641 - 2²⁷ = 143122183913 is a prime.

It is a super-2 number, since 2×143256401641² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 143256401641.

It is not a weakly prime, because it can be changed into another prime (143256401611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71628200820 + 71628200821.

It is an arithmetic number, because the mean of its divisors is an integer number (71628200821).

Almost surely, 2^143256401641 is an apocalyptic number.

It is an amenable number.

143256401641 is a deficient number, since it is larger than the sum of its proper divisors (1).

143256401641 is an equidigital number, since it uses as much as digits as its factorization.

143256401641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 143256401641 in words is "one hundred forty-three billion, two hundred fifty-six million, four hundred one thousand, six hundred forty-one".