126234869 has 2 divisors, whose sum is σ = 126234870. Its totient is φ = 126234868.

The previous prime is 126234863. The next prime is 126234881. The reversal of 126234869 is 968432621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100600900 + 25633969 = 10030^2 + 5063^2 .

It is a cyclic number.

It is not a de Polignac number, because 126234869 - 2⁴ = 126234853 is a prime.

It is a super-2 number, since 2×126234869² = 31870484302894322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126234863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63117434 + 63117435.

It is an arithmetic number, because the mean of its divisors is an integer number (63117435).

Almost surely, 2^126234869 is an apocalyptic number.

It is an amenable number.

126234869 is a deficient number, since it is larger than the sum of its proper divisors (1).

126234869 is an equidigital number, since it uses as much as digits as its factorization.

126234869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 126234869 is about 11235.4291862839. The cubic root of 126234869 is about 501.6410996905.

The spelling of 126234869 in words is "one hundred twenty-six million, two hundred thirty-four thousand, eight hundred sixty-nine".