145652753 has 4 divisors (see below), whose sum is σ = 154220580. Its totient is φ = 137084928.

The previous prime is 145652747. The next prime is 145652777. The reversal of 145652753 is 357256541.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 114661264 + 30991489 = 10708^2 + 5567^2 .

It is a cyclic number.

It is not a de Polignac number, because 145652753 - 2⁸ = 145652497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145652713) 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, 4283888 + ... + 4283921.

It is an arithmetic number, because the mean of its divisors is an integer number (38555145).

Almost surely, 2^145652753 is an apocalyptic number.

It is an amenable number.

145652753 is a deficient number, since it is larger than the sum of its proper divisors (8567827).

145652753 is an equidigital number, since it uses as much as digits as its factorization.

145652753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8567826.

The product of its digits is 126000, while the sum is 38.

The square root of 145652753 is about 12068.6682363880. The cubic root of 145652753 is about 526.1459509593.

The spelling of 145652753 in words is "one hundred forty-five million, six hundred fifty-two thousand, seven hundred fifty-three".