237440223481 has 2 divisors, whose sum is σ = 237440223482. Its totient is φ = 237440223480.

The previous prime is 237440223413. The next prime is 237440223487. The reversal of 237440223481 is 184322044732.

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., 237436925625 + 3297856 = 487275^2 + 1816^2 .

It is a cyclic number.

It is not a de Polignac number, because 237440223481 - 2³⁷ = 100001270009 is a prime.

It is a super-2 number, since 2×237440223481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (237440223487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118720111740 + 118720111741.

It is an arithmetic number, because the mean of its divisors is an integer number (118720111741).

Almost surely, 2^237440223481 is an apocalyptic number.

It is an amenable number.

237440223481 is a deficient number, since it is larger than the sum of its proper divisors (1).

237440223481 is an equidigital number, since it uses as much as digits as its factorization.

237440223481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 40.

The spelling of 237440223481 in words is "two hundred thirty-seven billion, four hundred forty million, two hundred twenty-three thousand, four hundred eighty-one".