145830074719 has 4 divisors (see below), whose sum is σ = 166662942544. Its totient is φ = 124997206896.

The previous prime is 145830074683. The next prime is 145830074749. The reversal of 145830074719 is 917470038541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917470038541 = 7 ⋅131067148363.

It is a cyclic number.

It is not a de Polignac number, because 145830074719 - 2¹¹ = 145830072671 is a prime.

It is a super-2 number, since 2×145830074719² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145830074749) 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, 10416433902 + ... + 10416433915.

It is an arithmetic number, because the mean of its divisors is an integer number (41665735636).

Almost surely, 2^145830074719 is an apocalyptic number.

145830074719 is a deficient number, since it is larger than the sum of its proper divisors (20832867825).

145830074719 is an equidigital number, since it uses as much as digits as its factorization.

145830074719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20832867824.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 145830074719 in words is "one hundred forty-five billion, eight hundred thirty million, seventy-four thousand, seven hundred nineteen".