145237753 has 4 divisors (see below), whose sum is σ = 145277028. Its totient is φ = 145198480.

The previous prime is 145237747. The next prime is 145237777. The reversal of 145237753 is 357732541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 357732541 = 421 ⋅849721.

It can be written as a sum of positive squares in 2 ways, for example, as 84584809 + 60652944 = 9197^2 + 7788^2 .

It is a cyclic number.

It is not a de Polignac number, because 145237753 - 2⁹ = 145237241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145237723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13438 + ... + 21703.

It is an arithmetic number, because the mean of its divisors is an integer number (36319257).

Almost surely, 2^145237753 is an apocalyptic number.

It is an amenable number.

145237753 is a deficient number, since it is larger than the sum of its proper divisors (39275).

145237753 is an equidigital number, since it uses as much as digits as its factorization.

145237753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39274.

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

The square root of 145237753 is about 12051.4626913085. The cubic root of 145237753 is about 525.6457698277.

The spelling of 145237753 in words is "one hundred forty-five million, two hundred thirty-seven thousand, seven hundred fifty-three".