240253023455437 has 2 divisors, whose sum is σ = 240253023455438. Its totient is φ = 240253023455436.

The previous prime is 240253023455371. The next prime is 240253023455447. The reversal of 240253023455437 is 734554320352042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132175812407076 + 108077211048361 = 11496774^2 + 10396019^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240253023455437 is a prime.

It is a super-2 number, since 2×240253023455437² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240253023455447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120126511727718 + 120126511727719.

It is an arithmetic number, because the mean of its divisors is an integer number (120126511727719).

Almost surely, 2^{240253023455437} is an apocalyptic number.

It is an amenable number.

240253023455437 is a deficient number, since it is larger than the sum of its proper divisors (1).

240253023455437 is an equidigital number, since it uses as much as digits as its factorization.

240253023455437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096000, while the sum is 49.

The spelling of 240253023455437 in words is "two hundred forty trillion, two hundred fifty-three billion, twenty-three million, four hundred fifty-five thousand, four hundred thirty-seven".