40137447137 has 2 divisors, whose sum is σ = 40137447138. Its totient is φ = 40137447136.

The previous prime is 40137447121. The next prime is 40137447149. The reversal of 40137447137 is 73174473104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34349432896 + 5788014241 = 185336^2 + 76079^2 .

It is a cyclic number.

It is not a de Polignac number, because 40137447137 - 2⁴ = 40137447121 is a prime.

It is a super-2 number, since 2×40137447137² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40137447094 and 40137447103.

It is not a weakly prime, because it can be changed into another prime (40137447107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20068723568 + 20068723569.

It is an arithmetic number, because the mean of its divisors is an integer number (20068723569).

Almost surely, 2^40137447137 is an apocalyptic number.

It is an amenable number.

40137447137 is a deficient number, since it is larger than the sum of its proper divisors (1).

40137447137 is an equidigital number, since it uses as much as digits as its factorization.

40137447137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 40137447137 in words is "forty billion, one hundred thirty-seven million, four hundred forty-seven thousand, one hundred thirty-seven".