145520422405 has 16 divisors (see below), whose sum is σ = 176527128960. Its totient is φ = 115150580928.

The previous prime is 145520422387. The next prime is 145520422427. The reversal of 145520422405 is 504224025541.

It is a cyclic number.

It is not a de Polignac number, because 145520422405 - 2⁵ = 145520422373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273666 + ... + 604924.

It is an arithmetic number, because the mean of its divisors is an integer number (11032945560).

Almost surely, 2^145520422405 is an apocalyptic number.

It is an amenable number.

145520422405 is a deficient number, since it is larger than the sum of its proper divisors (31006706555).

145520422405 is a wasteful number, since it uses less digits than its factorization.

145520422405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332220.

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 145520422405 its reverse (504224025541), we get a palindrome (649744447946).

The spelling of 145520422405 in words is "one hundred forty-five billion, five hundred twenty million, four hundred twenty-two thousand, four hundred five".