145823975 has 24 divisors (see below), whose sum is σ = 197866800. Its totient is φ = 105728000.

The previous prime is 145823971. The next prime is 145823983. The reversal of 145823975 is 579328541.

It is not a de Polignac number, because 145823975 - 2² = 145823971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145823971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122885 + ... + 124065.

It is an arithmetic number, because the mean of its divisors is an integer number (8244450).

Almost surely, 2^145823975 is an apocalyptic number.

145823975 is a deficient number, since it is larger than the sum of its proper divisors (52042825).

145823975 is a wasteful number, since it uses less digits than its factorization.

145823975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651 (or 1646 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 145823975 is about 12075.7598104633. The cubic root of 145823975 is about 526.3520404022.

The spelling of 145823975 in words is "one hundred forty-five million, eight hundred twenty-three thousand, nine hundred seventy-five".