126654001 has 2 divisors, whose sum is σ = 126654002. Its totient is φ = 126654000.

The previous prime is 126653999. The next prime is 126654037. The reversal of 126654001 is 100456621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109181601 + 17472400 = 10449^2 + 4180^2 .

It is a cyclic number.

It is not a de Polignac number, because 126654001 - 2¹ = 126653999 is a prime.

Together with 126653999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (126654401) 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, 63327000 + 63327001.

It is an arithmetic number, because the mean of its divisors is an integer number (63327001).

Almost surely, 2^126654001 is an apocalyptic number.

It is an amenable number.

126654001 is a deficient number, since it is larger than the sum of its proper divisors (1).

126654001 is an equidigital number, since it uses as much as digits as its factorization.

126654001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 126654001 is about 11254.0659763483. The cubic root of 126654001 is about 502.1956785443.

The spelling of 126654001 in words is "one hundred twenty-six million, six hundred fifty-four thousand, one".