225131747739 has 8 divisors (see below), whose sum is σ = 300909591120. Its totient is φ = 149720868096.

The previous prime is 225131747689. The next prime is 225131747837. The reversal of 225131747739 is 937747131522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225131747739 - 2⁹ = 225131747227 is a prime.

It is a super-2 number, since 2×225131747739² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225131747691 and 225131747700.

It is not an unprimeable number, because it can be changed into a prime (225131747539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91739502 + ... + 91741955.

It is an arithmetic number, because the mean of its divisors is an integer number (37613698890).

Almost surely, 2^225131747739 is an apocalyptic number.

225131747739 is a deficient number, since it is larger than the sum of its proper divisors (75777843381).

225131747739 is a wasteful number, since it uses less digits than its factorization.

225131747739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183481869.

The product of its digits is 2222640, while the sum is 51.

The spelling of 225131747739 in words is "two hundred twenty-five billion, one hundred thirty-one million, seven hundred forty-seven thousand, seven hundred thirty-nine".