145731383 has 8 divisors (see below), whose sum is σ = 167016960. Its totient is φ = 124562520.

The previous prime is 145731373. The next prime is 145731407. The reversal of 145731383 is 383137541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145731383 - 2⁴ = 145731367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145731323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26483 + ... + 31508.

It is an arithmetic number, because the mean of its divisors is an integer number (20877120).

Almost surely, 2^145731383 is an apocalyptic number.

145731383 is a deficient number, since it is larger than the sum of its proper divisors (21285577).

145731383 is an equidigital number, since it uses as much as digits as its factorization.

145731383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58357.

The product of its digits is 30240, while the sum is 35.

The square root of 145731383 is about 12071.9254056675. The cubic root of 145731383 is about 526.2406131218.

The spelling of 145731383 in words is "one hundred forty-five million, seven hundred thirty-one thousand, three hundred eighty-three".