134921879 has 8 divisors (see below), whose sum is σ = 136980480. Its totient is φ = 132879096.

The previous prime is 134921873. The next prime is 134921903. The reversal of 134921879 is 978129431.

134921879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134921879 - 2¹⁶ = 134856343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134921873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13832 + ... + 21474.

It is an arithmetic number, because the mean of its divisors is an integer number (17122560).

Almost surely, 2^134921879 is an apocalyptic number.

134921879 is a deficient number, since it is larger than the sum of its proper divisors (2058601).

134921879 is a wasteful number, since it uses less digits than its factorization.

134921879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7909.

The product of its digits is 108864, while the sum is 44.

The square root of 134921879 is about 11615.5877595583. The cubic root of 134921879 is about 512.8938130351.

The spelling of 134921879 in words is "one hundred thirty-four million, nine hundred twenty-one thousand, eight hundred seventy-nine".