134206339905 has 36 divisors (see below), whose sum is σ = 255694513620. Its totient is φ = 65069737920.

The previous prime is 134206339831. The next prime is 134206339907. The reversal of 134206339905 is 509933602431.

134206339905 is a `hidden beast` number, since 1 + 3 + 4 + 2 + 0 + 633 + 9 + 9 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 68240067984 + 65966271921 = 261228^2 + 256839^2 .

It is not a de Polignac number, because 134206339905 - 2⁸ = 134206339649 is a prime.

It is a super-2 number, since 2×134206339905² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (134206339907) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12318370 + ... + 12329259.

Almost surely, 2^134206339905 is an apocalyptic number.

134206339905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134206339905 is a deficient number, since it is larger than the sum of its proper divisors (121488173715).

134206339905 is a wasteful number, since it uses less digits than its factorization.

134206339905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24647662 (or 24647648 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 45.

The spelling of 134206339905 in words is "one hundred thirty-four billion, two hundred six million, three hundred thirty-nine thousand, nine hundred five".