1422100157 has 2 divisors, whose sum is σ = 1422100158. Its totient is φ = 1422100156.

The previous prime is 1422100139. The next prime is 1422100193. The reversal of 1422100157 is 7510012241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1409326681 + 12773476 = 37541^2 + 3574^2 .

It is an emirp because it is prime and its reverse (7510012241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1422100157 - 2²⁶ = 1354991293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421100157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711050078 + 711050079.

It is an arithmetic number, because the mean of its divisors is an integer number (711050079).

Almost surely, 2^1422100157 is an apocalyptic number.

It is an amenable number.

1422100157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422100157 is an equidigital number, since it uses as much as digits as its factorization.

1422100157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1422100157 is about 37710.7432570614. The cubic root of 1422100157 is about 1124.5447130874.

Adding to 1422100157 its reverse (7510012241), we get a palindrome (8932112398).

The spelling of 1422100157 in words is "one billion, four hundred twenty-two million, one hundred thousand, one hundred fifty-seven".