225131747837 has 2 divisors, whose sum is σ = 225131747838. Its totient is φ = 225131747836.

The previous prime is 225131747689. The next prime is 225131747861. The reversal of 225131747837 is 738747131522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200866208761 + 24265539076 = 448181^2 + 155774^2 .

It is a cyclic number.

It is not a de Polignac number, because 225131747837 - 2¹⁴ = 225131731453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225131747537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112565873918 + 112565873919.

It is an arithmetic number, because the mean of its divisors is an integer number (112565873919).

Almost surely, 2^225131747837 is an apocalyptic number.

It is an amenable number.

225131747837 is a deficient number, since it is larger than the sum of its proper divisors (1).

225131747837 is an equidigital number, since it uses as much as digits as its factorization.

225131747837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1975680, while the sum is 50.

The spelling of 225131747837 in words is "two hundred twenty-five billion, one hundred thirty-one million, seven hundred forty-seven thousand, eight hundred thirty-seven".