42145120032269 has 2 divisors, whose sum is σ = 42145120032270. Its totient is φ = 42145120032268.

The previous prime is 42145120032217. The next prime is 42145120032283. The reversal of 42145120032269 is 96223002154124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41432226883369 + 712893148900 = 6436787^2 + 844330^2 .

It is a cyclic number.

It is not a de Polignac number, because 42145120032269 - 2¹² = 42145120028173 is a prime.

It is a super-2 number, since 2×42145120032269² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42145140032269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21072560016134 + 21072560016135.

It is an arithmetic number, because the mean of its divisors is an integer number (21072560016135).

Almost surely, 2^{42145120032269} is an apocalyptic number.

It is an amenable number.

42145120032269 is a deficient number, since it is larger than the sum of its proper divisors (1).

42145120032269 is an equidigital number, since it uses as much as digits as its factorization.

42145120032269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 42145120032269 in words is "forty-two trillion, one hundred forty-five billion, one hundred twenty million, thirty-two thousand, two hundred sixty-nine".