126923389 has 2 divisors, whose sum is σ = 126923390. Its totient is φ = 126923388.

The previous prime is 126923369. The next prime is 126923417. The reversal of 126923389 is 983329621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122279364 + 4644025 = 11058^2 + 2155^2 .

It is a cyclic number.

It is not a de Polignac number, because 126923389 - 2⁷ = 126923261 is a prime.

It is a super-2 number, since 2×126923389² = 32219093350490642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126923369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63461694 + 63461695.

It is an arithmetic number, because the mean of its divisors is an integer number (63461695).

Almost surely, 2^126923389 is an apocalyptic number.

It is an amenable number.

126923389 is a deficient number, since it is larger than the sum of its proper divisors (1).

126923389 is an equidigital number, since it uses as much as digits as its factorization.

126923389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 126923389 is about 11266.0280933433. The cubic root of 126923389 is about 502.5514764555.

The spelling of 126923389 in words is "one hundred twenty-six million, nine hundred twenty-three thousand, three hundred eighty-nine".