145242055019 has 2 divisors, whose sum is σ = 145242055020. Its totient is φ = 145242055018.

The previous prime is 145242055003. The next prime is 145242055051. The reversal of 145242055019 is 910550242541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145242055019 - 2⁴ = 145242055003 is a prime.

It is a super-2 number, since 2×145242055019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145242055619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72621027509 + 72621027510.

It is an arithmetic number, because the mean of its divisors is an integer number (72621027510).

Almost surely, 2^145242055019 is an apocalyptic number.

145242055019 is a deficient number, since it is larger than the sum of its proper divisors (1).

145242055019 is an equidigital number, since it uses as much as digits as its factorization.

145242055019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 145242055019 in words is "one hundred forty-five billion, two hundred forty-two million, fifty-five thousand, nineteen".