145333715647 has 4 divisors (see below), whose sum is σ = 145404508600. Its totient is φ = 145262922696.

The previous prime is 145333715629. The next prime is 145333715707. The reversal of 145333715647 is 746517333541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746517333541 = 7 ⋅106645333363.

It is a cyclic number.

It is not a de Polignac number, because 145333715647 - 2¹⁹ = 145333191359 is a prime.

It is a super-2 number, since 2×145333715647² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145333715647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145333815647) 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, 35393397 + ... + 35397502.

It is an arithmetic number, because the mean of its divisors is an integer number (36351127150).

Almost surely, 2^145333715647 is an apocalyptic number.

145333715647 is a deficient number, since it is larger than the sum of its proper divisors (70792953).

145333715647 is an equidigital number, since it uses as much as digits as its factorization.

145333715647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70792952.

The product of its digits is 3175200, while the sum is 49.

The spelling of 145333715647 in words is "one hundred forty-five billion, three hundred thirty-three million, seven hundred fifteen thousand, six hundred forty-seven".