225148781351 has 4 divisors (see below), whose sum is σ = 242467918392. Its totient is φ = 207829644312.

The previous prime is 225148781323. The next prime is 225148781381. The reversal of 225148781351 is 153187841522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153187841522 = 2 ⋅76593920761.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225148781351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225148781296 and 225148781305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225148781381) 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, 8659568501 + ... + 8659568526.

It is an arithmetic number, because the mean of its divisors is an integer number (60616979598).

Almost surely, 2^225148781351 is an apocalyptic number.

225148781351 is a deficient number, since it is larger than the sum of its proper divisors (17319137041).

225148781351 is a wasteful number, since it uses less digits than its factorization.

225148781351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17319137040.

The product of its digits is 537600, while the sum is 47.

The spelling of 225148781351 in words is "two hundred twenty-five billion, one hundred forty-eight million, seven hundred eighty-one thousand, three hundred fifty-one".