126600641 has 2 divisors, whose sum is σ = 126600642. Its totient is φ = 126600640.

The previous prime is 126600613. The next prime is 126600659. The reversal of 126600641 is 146006621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94167616 + 32433025 = 9704^2 + 5695^2 .

It is a cyclic number.

It is not a de Polignac number, because 126600641 - 2⁶ = 126600577 is a prime.

It is a super-2 number, since 2×126600641² = 32055444603221762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126600641.

It is not a weakly prime, because it can be changed into another prime (126600541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63300320 + 63300321.

It is an arithmetic number, because the mean of its divisors is an integer number (63300321).

Almost surely, 2^126600641 is an apocalyptic number.

It is an amenable number.

126600641 is a deficient number, since it is larger than the sum of its proper divisors (1).

126600641 is an equidigital number, since it uses as much as digits as its factorization.

126600641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 126600641 is about 11251.6950278614. The cubic root of 126600641 is about 502.1251427398.

The spelling of 126600641 in words is "one hundred twenty-six million, six hundred thousand, six hundred forty-one".