126124357 has 2 divisors, whose sum is σ = 126124358. Its totient is φ = 126124356.

The previous prime is 126124333. The next prime is 126124373. The reversal of 126124357 is 753421621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124344801 + 1779556 = 11151^2 + 1334^2 .

It is an emirp because it is prime and its reverse (753421621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126124357 - 2¹¹ = 126122309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126124307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63062178 + 63062179.

It is an arithmetic number, because the mean of its divisors is an integer number (63062179).

Almost surely, 2^126124357 is an apocalyptic number.

It is an amenable number.

126124357 is a deficient number, since it is larger than the sum of its proper divisors (1).

126124357 is an equidigital number, since it uses as much as digits as its factorization.

126124357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 126124357 is about 11230.5100952717. The cubic root of 126124357 is about 501.4946701368.

Adding to 126124357 its reverse (753421621), we get a palindrome (879545978).

The spelling of 126124357 in words is "one hundred twenty-six million, one hundred twenty-four thousand, three hundred fifty-seven".