134721105 has 16 divisors (see below), whose sum is σ = 215728704. Its totient is φ = 71792960.

The previous prime is 134721101. The next prime is 134721109. The reversal of 134721105 is 501127431.

It is an interprime number because it is at equal distance from previous prime (134721101) and next prime (134721109).

It is not a de Polignac number, because 134721105 - 2² = 134721101 is a prime.

It is a super-2 number, since 2×134721105² = 36299552264842050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134721101) 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, 20707 + ... + 26423.

It is an arithmetic number, because the mean of its divisors is an integer number (13483044).

Almost surely, 2^134721105 is an apocalyptic number.

134721105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134721105 is a deficient number, since it is larger than the sum of its proper divisors (81007599).

134721105 is a wasteful number, since it uses less digits than its factorization.

134721105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7296.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 134721105 is about 11606.9421037584. The cubic root of 134721105 is about 512.6392784259.

Adding to 134721105 its reverse (501127431), we get a palindrome (635848536).

The spelling of 134721105 in words is "one hundred thirty-four million, seven hundred twenty-one thousand, one hundred five".