145320452887 has 2 divisors, whose sum is σ = 145320452888. Its totient is φ = 145320452886.

The previous prime is 145320452869. The next prime is 145320452939. The reversal of 145320452887 is 788254023541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145320452887 - 2¹⁹ = 145319928599 is a prime.

It is a super-2 number, since 2×145320452887² (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 145320452887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145320452867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72660226443 + 72660226444.

It is an arithmetic number, because the mean of its divisors is an integer number (72660226444).

Almost surely, 2^145320452887 is an apocalyptic number.

145320452887 is a deficient number, since it is larger than the sum of its proper divisors (1).

145320452887 is an equidigital number, since it uses as much as digits as its factorization.

145320452887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2150400, while the sum is 49.

The spelling of 145320452887 in words is "one hundred forty-five billion, three hundred twenty million, four hundred fifty-two thousand, eight hundred eighty-seven".