1305241200157 has 2 divisors, whose sum is σ = 1305241200158. Its totient is φ = 1305241200156.

The previous prime is 1305241200139. The next prime is 1305241200203. The reversal of 1305241200157 is 7510021425031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 882310790596 + 422930409561 = 939314^2 + 650331^2 .

It is an emirp because it is prime and its reverse (7510021425031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1305241200157 - 2²³ = 1305232811549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1305241203157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652620600078 + 652620600079.

It is an arithmetic number, because the mean of its divisors is an integer number (652620600079).

Almost surely, 2^{1305241200157} is an apocalyptic number.

It is an amenable number.

1305241200157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305241200157 is an equidigital number, since it uses as much as digits as its factorization.

1305241200157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

Adding to 1305241200157 its reverse (7510021425031), we get a palindrome (8815262625188).

The spelling of 1305241200157 in words is "one trillion, three hundred five billion, two hundred forty-one million, two hundred thousand, one hundred fifty-seven".