101266001 has 2 divisors, whose sum is σ = 101266002. Its totient is φ = 101266000.

The previous prime is 101265979. The next prime is 101266021. The reversal of 101266001 is 100662101.

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., 63123025 + 38142976 = 7945^2 + 6176^2 .

It is a cyclic number.

It is not a de Polignac number, because 101266001 - 2¹⁸ = 101003857 is a prime.

It is not a weakly prime, because it can be changed into another prime (101266021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50633000 + 50633001.

It is an arithmetic number, because the mean of its divisors is an integer number (50633001).

Almost surely, 2^101266001 is an apocalyptic number.

It is an amenable number.

101266001 is a deficient number, since it is larger than the sum of its proper divisors (1).

101266001 is an equidigital number, since it uses as much as digits as its factorization.

101266001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 101266001 is about 10063.1009634208. The cubic root of 101266001 is about 466.1094271071.

The spelling of 101266001 in words is "one hundred one million, two hundred sixty-six thousand, one".