266106139 has 16 divisors (see below), whose sum is σ = 297708544. Its totient is φ = 236196000.

The previous prime is 266106119. The next prime is 266106149. The reversal of 266106139 is 931601662.

It is a cyclic number.

It is not a de Polignac number, because 266106139 - 2⁹ = 266105627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266106119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63664 + ... + 67714.

It is an arithmetic number, because the mean of its divisors is an integer number (18606784).

Almost surely, 2^266106139 is an apocalyptic number.

266106139 is a deficient number, since it is larger than the sum of its proper divisors (31602405).

266106139 is a wasteful number, since it uses less digits than its factorization.

266106139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 266106139 is about 16312.7600055907. The cubic root of 266106139 is about 643.2082871198.

The spelling of 266106139 in words is "two hundred sixty-six million, one hundred six thousand, one hundred thirty-nine".