153145277321 has 4 divisors (see below), whose sum is σ = 153354207492. Its totient is φ = 152936347152.

The previous prime is 153145277293. The next prime is 153145277381. The reversal of 153145277321 is 123772541351.

It is a happy number.

153145277321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123772541351 = 151573 ⋅816587.

It can be written as a sum of positive squares in 2 ways, for example, as 112939012096 + 40206265225 = 336064^2 + 200515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153145277321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153145277381) 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 3 ways as a sum of consecutive naturals, for example, 104463986 + ... + 104465451.

It is an arithmetic number, because the mean of its divisors is an integer number (38338551873).

Almost surely, 2^153145277321 is an apocalyptic number.

It is an amenable number.

153145277321 is a deficient number, since it is larger than the sum of its proper divisors (208930171).

153145277321 is an equidigital number, since it uses as much as digits as its factorization.

153145277321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208930170.

The product of its digits is 176400, while the sum is 41.

The spelling of 153145277321 in words is "one hundred fifty-three billion, one hundred forty-five million, two hundred seventy-seven thousand, three hundred twenty-one".