145385973 has 12 divisors (see below), whose sum is σ = 210457728. Its totient is φ = 96713640.

The previous prime is 145385957. The next prime is 145386029. The reversal of 145385973 is 379583541.

145385973 is a `hidden beast` number, since 1 + 4 + 53 + 8 + 597 + 3 = 666.

It is not a de Polignac number, because 145385973 - 2⁴ = 145385957 is a prime.

It is a super-2 number, since 2×145385973² = 42274162290313458, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145385923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13093 + ... + 21498.

It is an arithmetic number, because the mean of its divisors is an integer number (17538144).

Almost surely, 2^145385973 is an apocalyptic number.

It is an amenable number.

145385973 is a deficient number, since it is larger than the sum of its proper divisors (65071755).

145385973 is a wasteful number, since it uses less digits than its factorization.

145385973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35064 (or 35061 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 145385973 is about 12057.6105841912. The cubic root of 145385973 is about 525.8245220822.

The spelling of 145385973 in words is "one hundred forty-five million, three hundred eighty-five thousand, nine hundred seventy-three".