145036226653 has 4 divisors (see below), whose sum is σ = 145040865820. Its totient is φ = 145031587488.

The previous prime is 145036226651. The next prime is 145036226659. The reversal of 145036226653 is 356622630541.

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 111811321924 + 33224904729 = 334382^2 + 182277^2 .

It is a cyclic number.

It is not a de Polignac number, because 145036226653 - 2¹ = 145036226651 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 (145036226651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272368 + ... + 2335321.

It is an arithmetic number, because the mean of its divisors is an integer number (36260216455).

Almost surely, 2^145036226653 is an apocalyptic number.

It is an amenable number.

145036226653 is a deficient number, since it is larger than the sum of its proper divisors (4639167).

145036226653 is an equidigital number, since it uses as much as digits as its factorization.

145036226653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639166.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 145036226653 in words is "one hundred forty-five billion, thirty-six million, two hundred twenty-six thousand, six hundred fifty-three".