145747323 has 16 divisors (see below), whose sum is σ = 216729600. Its totient is φ = 96801480.

The previous prime is 145747291. The next prime is 145747331. The reversal of 145747323 is 323747541.

145747323 is a `hidden beast` number, since 14 + 574 + 73 + 2 + 3 = 666.

It is not a de Polignac number, because 145747323 - 2⁵ = 145747291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145747223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2643 + ... + 17276.

It is an arithmetic number, because the mean of its divisors is an integer number (13545600).

Almost surely, 2^145747323 is an apocalyptic number.

145747323 is a deficient number, since it is larger than the sum of its proper divisors (70982277).

145747323 is a wasteful number, since it uses less digits than its factorization.

145747323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20199 (or 20193 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 145747323 is about 12072.5855971287. The cubic root of 145747323 is about 526.2597990363.

It can be divided in two parts, 145747 and 323, that added together give a triangular number (146070 = T₅₄₀).

The spelling of 145747323 in words is "one hundred forty-five million, seven hundred forty-seven thousand, three hundred twenty-three".