141378257 has 2 divisors, whose sum is σ = 141378258. Its totient is φ = 141378256.

The previous prime is 141378247. The next prime is 141378269. The reversal of 141378257 is 752873141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94167616 + 47210641 = 9704^2 + 6871^2 .

It is an emirp because it is prime and its reverse (752873141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141378257 - 2²⁰ = 140329681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 141378257.

It is not a weakly prime, because it can be changed into another prime (141378227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70689128 + 70689129.

It is an arithmetic number, because the mean of its divisors is an integer number (70689129).

Almost surely, 2^141378257 is an apocalyptic number.

It is an amenable number.

141378257 is a deficient number, since it is larger than the sum of its proper divisors (1).

141378257 is an equidigital number, since it uses as much as digits as its factorization.

141378257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 38.

The square root of 141378257 is about 11890.2589122357. The cubic root of 141378257 is about 520.9477992653.

The spelling of 141378257 in words is "one hundred forty-one million, three hundred seventy-eight thousand, two hundred fifty-seven".