42242200157 has 2 divisors, whose sum is σ = 42242200158. Its totient is φ = 42242200156.

The previous prime is 42242200111. The next prime is 42242200163. The reversal of 42242200157 is 75100224224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40909512121 + 1332688036 = 202261^2 + 36506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42242200157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42242200757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121100078 + 21121100079.

It is an arithmetic number, because the mean of its divisors is an integer number (21121100079).

Almost surely, 2^42242200157 is an apocalyptic number.

It is an amenable number.

42242200157 is a deficient number, since it is larger than the sum of its proper divisors (1).

42242200157 is an equidigital number, since it uses as much as digits as its factorization.

42242200157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 29.

The spelling of 42242200157 in words is "forty-two billion, two hundred forty-two million, two hundred thousand, one hundred fifty-seven".