145423412043445 has 8 divisors (see below), whose sum is σ = 174508815004344. Its totient is φ = 116338249266624.

The previous prime is 145423412043379. The next prime is 145423412043451. The reversal of 145423412043445 is 544340214324541.

It can be written as a sum of positive squares in 4 ways, for example, as 9625735836369 + 135797676207076 = 3102537^2 + 11653226^2 .

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 145423412043445 - 2⁷ = 145423412043317 is a prime.

It is a super-2 number, since 2×145423412043445² (a number of 29 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 = 145423412043395 and 145423412043404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58711294 + ... + 61138063.

It is an arithmetic number, because the mean of its divisors is an integer number (21813601875543).

Almost surely, 2^{145423412043445} is an apocalyptic number.

It is an amenable number.

145423412043445 is a deficient number, since it is larger than the sum of its proper divisors (29085402960899).

145423412043445 is a wasteful number, since it uses less digits than its factorization.

145423412043445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120092039.

The product of its (nonzero) digits is 3686400, while the sum is 46.

Adding to 145423412043445 its reverse (544340214324541), we get a palindrome (689763626367986).

The spelling of 145423412043445 in words is "one hundred forty-five trillion, four hundred twenty-three billion, four hundred twelve million, forty-three thousand, four hundred forty-five".