126972233 has 2 divisors, whose sum is σ = 126972234. Its totient is φ = 126972232.

The previous prime is 126972229. The next prime is 126972253. The reversal of 126972233 is 332279621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116035984 + 10936249 = 10772^2 + 3307^2 .

It is a cyclic number.

It is not a de Polignac number, because 126972233 - 2² = 126972229 is a prime.

It is a super-2 number, since 2×126972233² = 32243895906012578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126972193 and 126972202.

It is not a weakly prime, because it can be changed into another prime (126972253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63486116 + 63486117.

It is an arithmetic number, because the mean of its divisors is an integer number (63486117).

Almost surely, 2^126972233 is an apocalyptic number.

It is an amenable number.

126972233 is a deficient number, since it is larger than the sum of its proper divisors (1).

126972233 is an equidigital number, since it uses as much as digits as its factorization.

126972233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 35.

The square root of 126972233 is about 11268.1956408291. The cubic root of 126972233 is about 502.6159339114.

The spelling of 126972233 in words is "one hundred twenty-six million, nine hundred seventy-two thousand, two hundred thirty-three".