101266387 has 4 divisors (see below), whose sum is σ = 102548320. Its totient is φ = 99984456.

The previous prime is 101266381. The next prime is 101266393. The reversal of 101266387 is 783662101.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (101266381) and next prime (101266393).

It is a cyclic number.

It is not a de Polignac number, because 101266387 - 2⁷ = 101266259 is a prime.

It is a super-2 number, since 2×101266387² = 20509762272067538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101266381) 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 in 3 ways as a sum of consecutive naturals, for example, 640848 + ... + 641005.

It is an arithmetic number, because the mean of its divisors is an integer number (25637080).

Almost surely, 2^101266387 is an apocalyptic number.

101266387 is a deficient number, since it is larger than the sum of its proper divisors (1281933).

101266387 is an equidigital number, since it uses as much as digits as its factorization.

101266387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281932.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 101266387 is about 10063.1201423813. The cubic root of 101266387 is about 466.1100193362.

The spelling of 101266387 in words is "one hundred one million, two hundred sixty-six thousand, three hundred eighty-seven".