126422381 has 2 divisors, whose sum is σ = 126422382. Its totient is φ = 126422380.

The previous prime is 126422341. The next prime is 126422383. The reversal of 126422381 is 183224621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122301481 + 4120900 = 11059^2 + 2030^2 .

It is a cyclic number.

It is not a de Polignac number, because 126422381 - 2¹⁰ = 126421357 is a prime.

It is a super-2 number, since 2×126422381² = 31965236835418322, which contains 22 as substring.

Together with 126422383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126422383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63211190 + 63211191.

It is an arithmetic number, because the mean of its divisors is an integer number (63211191).

Almost surely, 2^126422381 is an apocalyptic number.

It is an amenable number.

126422381 is a deficient number, since it is larger than the sum of its proper divisors (1).

126422381 is an equidigital number, since it uses as much as digits as its factorization.

126422381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 29.

The square root of 126422381 is about 11243.7707642943. The cubic root of 126422381 is about 501.8893596477.

The spelling of 126422381 in words is "one hundred twenty-six million, four hundred twenty-two thousand, three hundred eighty-one".