40251142229 has 2 divisors, whose sum is σ = 40251142230. Its totient is φ = 40251142228.

The previous prime is 40251142201. The next prime is 40251142247. The reversal of 40251142229 is 92224115204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40150942129 + 100200100 = 200377^2 + 10010^2 .

It is a cyclic number.

It is not a de Polignac number, because 40251142229 - 2²⁸ = 39982706773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40251142195 and 40251142204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40251142289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20125571114 + 20125571115.

It is an arithmetic number, because the mean of its divisors is an integer number (20125571115).

Almost surely, 2^40251142229 is an apocalyptic number.

It is an amenable number.

40251142229 is a deficient number, since it is larger than the sum of its proper divisors (1).

40251142229 is an equidigital number, since it uses as much as digits as its factorization.

40251142229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 40251142229 in words is "forty billion, two hundred fifty-one million, one hundred forty-two thousand, two hundred twenty-nine".