145175743 has 4 divisors (see below), whose sum is σ = 145434168. Its totient is φ = 144917320.

The previous prime is 145175741. The next prime is 145175819. The reversal of 145175743 is 347571541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347571541 = 19 ⋅18293239.

It is a cyclic number.

It is not a de Polignac number, because 145175743 - 2¹ = 145175741 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 (145175741) 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, 128368 + ... + 129493.

It is an arithmetic number, because the mean of its divisors is an integer number (36358542).

Almost surely, 2^145175743 is an apocalyptic number.

145175743 is a deficient number, since it is larger than the sum of its proper divisors (258425).

145175743 is an equidigital number, since it uses as much as digits as its factorization.

145175743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258424.

The product of its digits is 58800, while the sum is 37.

The square root of 145175743 is about 12048.8896998852. The cubic root of 145175743 is about 525.5709501303.

The spelling of 145175743 in words is "one hundred forty-five million, one hundred seventy-five thousand, seven hundred forty-three".