1249133560357 has 2 divisors, whose sum is σ = 1249133560358. Its totient is φ = 1249133560356.

The previous prime is 1249133560319. The next prime is 1249133560373. The reversal of 1249133560357 is 7530653319421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 843754310721 + 405379249636 = 918561^2 + 636694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1249133560357 is a prime.

It is a super-2 number, since 2×1249133560357² (a number of 25 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 1249133560357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1249133560307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624566780178 + 624566780179.

It is an arithmetic number, because the mean of its divisors is an integer number (624566780179).

Almost surely, 2^{1249133560357} is an apocalyptic number.

It is an amenable number.

1249133560357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249133560357 is an equidigital number, since it uses as much as digits as its factorization.

1249133560357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 49.

Adding to 1249133560357 its reverse (7530653319421), we get a palindrome (8779786879778).

The spelling of 1249133560357 in words is "one trillion, two hundred forty-nine billion, one hundred thirty-three million, five hundred sixty thousand, three hundred fifty-seven".