153872148721247 has 4 divisors (see below), whose sum is σ = 167860525877736. Its totient is φ = 139883771564760.

The previous prime is 153872148721217. The next prime is 153872148721253. The reversal of 153872148721247 is 742127841278351.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 153872148721247 - 2⁴² = 149474102210143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 153872148721247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153872148721217) 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, 6994188578228 + ... + 6994188578249.

It is an arithmetic number, because the mean of its divisors is an integer number (41965131469434).

Almost surely, 2^{153872148721247} is an apocalyptic number.

153872148721247 is a deficient number, since it is larger than the sum of its proper divisors (13988377156489).

153872148721247 is a wasteful number, since it uses less digits than its factorization.

153872148721247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13988377156488.

The product of its digits is 42147840, while the sum is 62.

Adding to 153872148721247 its reverse (742127841278351), we get a palindrome (895999989999598).

The spelling of 153872148721247 in words is "one hundred fifty-three trillion, eight hundred seventy-two billion, one hundred forty-eight million, seven hundred twenty-one thousand, two hundred forty-seven".