40120654237 has 2 divisors, whose sum is σ = 40120654238. Its totient is φ = 40120654236.

The previous prime is 40120654183. The next prime is 40120654261. The reversal of 40120654237 is 73245602104.

40120654237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29730725476 + 10389928761 = 172426^2 + 101931^2 .

It is a cyclic number.

It is not a de Polignac number, because 40120654237 - 2¹⁹ = 40120129949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40120654537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20060327118 + 20060327119.

It is an arithmetic number, because the mean of its divisors is an integer number (20060327119).

Almost surely, 2^40120654237 is an apocalyptic number.

It is an amenable number.

40120654237 is a deficient number, since it is larger than the sum of its proper divisors (1).

40120654237 is an equidigital number, since it uses as much as digits as its factorization.

40120654237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 40120654237 in words is "forty billion, one hundred twenty million, six hundred fifty-four thousand, two hundred thirty-seven".