1145542464251 has 2 divisors, whose sum is σ = 1145542464252. Its totient is φ = 1145542464250.

The previous prime is 1145542464233. The next prime is 1145542464343. The reversal of 1145542464251 is 1524642455411.

It is a weak prime.

It is an emirp because it is prime and its reverse (1524642455411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145542464251 is a prime.

It is a super-2 number, since 2×1145542464251² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1145542464151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572771232125 + 572771232126.

It is an arithmetic number, because the mean of its divisors is an integer number (572771232126).

Almost surely, 2^{1145542464251} is an apocalyptic number.

1145542464251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145542464251 is an equidigital number, since it uses as much as digits as its factorization.

1145542464251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768000, while the sum is 44.

The spelling of 1145542464251 in words is "one trillion, one hundred forty-five billion, five hundred forty-two million, four hundred sixty-four thousand, two hundred fifty-one".