145405424041 has 4 divisors (see below), whose sum is σ = 145406684500. Its totient is φ = 145404163584.

The previous prime is 145405424023. The next prime is 145405424053. The reversal of 145405424041 is 140424504541.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36376025625 + 109029398416 = 190725^2 + 330196^2 .

It is a cyclic number.

It is not a de Polignac number, because 145405424041 - 2²⁵ = 145371869609 is a prime.

It is a super-2 number, since 2×145405424041² (a number of 23 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 = 145405423988 and 145405424006.

It is not an unprimeable number, because it can be changed into a prime (145405424071) 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, 437556 + ... + 694453.

It is an arithmetic number, because the mean of its divisors is an integer number (36351671125).

Almost surely, 2^145405424041 is an apocalyptic number.

It is an amenable number.

145405424041 is a deficient number, since it is larger than the sum of its proper divisors (1260459).

145405424041 is a wasteful number, since it uses less digits than its factorization.

145405424041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260458.

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 145405424041 its reverse (140424504541), we get a palindrome (285829928582).

The spelling of 145405424041 in words is "one hundred forty-five billion, four hundred five million, four hundred twenty-four thousand, forty-one".