145421044075 has 24 divisors (see below), whose sum is σ = 182084171760. Its totient is φ = 115204185600.

The previous prime is 145421044073. The next prime is 145421044079. The reversal of 145421044075 is 570440124541.

145421044075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145421044075 - 2¹ = 145421044073 is a prime.

It is a super-2 number, since 2×145421044075² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145421044073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1348920 + ... + 1452730.

It is an arithmetic number, because the mean of its divisors is an integer number (7586840490).

Almost surely, 2^145421044075 is an apocalyptic number.

145421044075 is a deficient number, since it is larger than the sum of its proper divisors (36663127685).

145421044075 is a wasteful number, since it uses less digits than its factorization.

145421044075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104367 (or 104362 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

The spelling of 145421044075 in words is "one hundred forty-five billion, four hundred twenty-one million, forty-four thousand, seventy-five".