145757323 has 4 divisors (see below), whose sum is σ = 146448328. Its totient is φ = 145066320.

The previous prime is 145757321. The next prime is 145757327. The reversal of 145757323 is 323757541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145757323 - 2¹ = 145757321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145757321) 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, 345186 + ... + 345607.

It is an arithmetic number, because the mean of its divisors is an integer number (36612082).

Almost surely, 2^145757323 is an apocalyptic number.

145757323 is a deficient number, since it is larger than the sum of its proper divisors (691005).

145757323 is an equidigital number, since it uses as much as digits as its factorization.

145757323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691004.

The product of its digits is 88200, while the sum is 37.

The square root of 145757323 is about 12072.9997515116. Note that the first 3 decimals coincide. The cubic root of 145757323 is about 526.2718346550.

The spelling of 145757323 in words is "one hundred forty-five million, seven hundred fifty-seven thousand, three hundred twenty-three".