42109138153 has 2 divisors, whose sum is σ = 42109138154. Its totient is φ = 42109138152.

The previous prime is 42109138063. The next prime is 42109138177. The reversal of 42109138153 is 35183190124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26089679529 + 16019458624 = 161523^2 + 126568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42109138153 is a prime.

It is not a weakly prime, because it can be changed into another prime (42109138853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21054569076 + 21054569077.

It is an arithmetic number, because the mean of its divisors is an integer number (21054569077).

Almost surely, 2^42109138153 is an apocalyptic number.

It is an amenable number.

42109138153 is a deficient number, since it is larger than the sum of its proper divisors (1).

42109138153 is an equidigital number, since it uses as much as digits as its factorization.

42109138153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 42109138153 in words is "forty-two billion, one hundred nine million, one hundred thirty-eight thousand, one hundred fifty-three".