145001440019 has 4 divisors (see below), whose sum is σ = 145029443160. Its totient is φ = 144973436880.

The previous prime is 145001440009. The next prime is 145001440021. The reversal of 145001440019 is 910044100541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 910044100541 = 433 ⋅2101718477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145001440019 is a prime.

It is a super-2 number, since 2×145001440019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145001439973 and 145001440000.

It is not an unprimeable number, because it can be changed into a prime (145001440009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13993802 + ... + 14004159.

It is an arithmetic number, because the mean of its divisors is an integer number (36257360790).

Almost surely, 2^145001440019 is an apocalyptic number.

145001440019 is a deficient number, since it is larger than the sum of its proper divisors (28003141).

145001440019 is an equidigital number, since it uses as much as digits as its factorization.

145001440019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28003140.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 145001440019 in words is "one hundred forty-five billion, one million, four hundred forty thousand, nineteen".