145005420464431 has 8 divisors (see below), whose sum is σ = 145610554624304. Its totient is φ = 144400314833280.

The previous prime is 145005420464407. The next prime is 145005420464459. The reversal of 145005420464431 is 134464024500541.

145005420464431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145005420464431 - 2²⁷ = 145005286246703 is a prime.

It is a super-2 number, since 2×145005420464431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145005420461431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3085081 + ... + 17306893.

It is an arithmetic number, because the mean of its divisors is an integer number (18201319328038).

Almost surely, 2^{145005420464431} is an apocalyptic number.

145005420464431 is a deficient number, since it is larger than the sum of its proper divisors (605134159873).

145005420464431 is a wasteful number, since it uses less digits than its factorization.

145005420464431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14264361.

The product of its (nonzero) digits is 921600, while the sum is 43.

Adding to 145005420464431 its reverse (134464024500541), we get a palindrome (279469444964972).

The spelling of 145005420464431 in words is "one hundred forty-five trillion, five billion, four hundred twenty million, four hundred sixty-four thousand, four hundred thirty-one".