145746019619 has 4 divisors (see below), whose sum is σ = 145755797160. Its totient is φ = 145736242080.

The previous prime is 145746019613. The next prime is 145746019663. The reversal of 145746019619 is 916910647541.

145746019619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145746019619 - 2³⁶ = 77026542883 is a prime.

It is a super-2 number, since 2×145746019619² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145746019613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4866377 + ... + 4896234.

It is an arithmetic number, because the mean of its divisors is an integer number (36438949290).

Almost surely, 2^145746019619 is an apocalyptic number.

145746019619 is a deficient number, since it is larger than the sum of its proper divisors (9777541).

145746019619 is an equidigital number, since it uses as much as digits as its factorization.

145746019619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9777540.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 145746019619 in words is "one hundred forty-five billion, seven hundred forty-six million, nineteen thousand, six hundred nineteen".