145441975 has 24 divisors (see below), whose sum is σ = 207308160. Its totient is φ = 99153120.

The previous prime is 145441973. The next prime is 145441981. The reversal of 145441975 is 579144541.

It is a happy number.

145441975 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 145441975 - 2¹ = 145441973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145441973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29004 + ... + 33646.

It is an arithmetic number, because the mean of its divisors is an integer number (8637840).

Almost surely, 2^145441975 is an apocalyptic number.

145441975 is a deficient number, since it is larger than the sum of its proper divisors (61866185).

145441975 is a wasteful number, since it uses less digits than its factorization.

145441975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4839 (or 4834 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 145441975 is about 12059.9326283359. The cubic root of 145441975 is about 525.8920284679.

The spelling of 145441975 in words is "one hundred forty-five million, four hundred forty-one thousand, nine hundred seventy-five".