126694237 has 2 divisors, whose sum is σ = 126694238. Its totient is φ = 126694236.

The previous prime is 126694229. The next prime is 126694277. The reversal of 126694237 is 732496621.

It is a happy number.

It is an a-pointer prime, because the next prime (126694277) can be obtained adding 126694237 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70459236 + 56235001 = 8394^2 + 7499^2 .

It is a cyclic number.

It is not a de Polignac number, because 126694237 - 2³ = 126694229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126694237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126694277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63347118 + 63347119.

It is an arithmetic number, because the mean of its divisors is an integer number (63347119).

Almost surely, 2^126694237 is an apocalyptic number.

It is an amenable number.

126694237 is a deficient number, since it is larger than the sum of its proper divisors (1).

126694237 is an equidigital number, since it uses as much as digits as its factorization.

126694237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 126694237 is about 11255.8534549807. The cubic root of 126694237 is about 502.2488528243.

The spelling of 126694237 in words is "one hundred twenty-six million, six hundred ninety-four thousand, two hundred thirty-seven".