145683933 has 4 divisors (see below), whose sum is σ = 194245248. Its totient is φ = 97122620.

The previous prime is 145683917. The next prime is 145683943. The reversal of 145683933 is 339386541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145683933 - 2⁴ = 145683917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145683943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24280653 + ... + 24280658.

It is an arithmetic number, because the mean of its divisors is an integer number (48561312).

Almost surely, 2^145683933 is an apocalyptic number.

It is an amenable number.

145683933 is a deficient number, since it is larger than the sum of its proper divisors (48561315).

145683933 is an equidigital number, since it uses as much as digits as its factorization.

145683933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48561314.

The product of its digits is 233280, while the sum is 42.

The square root of 145683933 is about 12069.9599419385. The cubic root of 145683933 is about 526.1834924405.

The spelling of 145683933 in words is "one hundred forty-five million, six hundred eighty-three thousand, nine hundred thirty-three".