134915781379 has 4 divisors (see below), whose sum is σ = 136623576160. Its totient is φ = 133207986600.

The previous prime is 134915781331. The next prime is 134915781389. The reversal of 134915781379 is 973187519431.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 134915781379 - 2²⁹ = 134378910467 is a prime.

It is a super-2 number, since 2×134915781379² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134915781389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853897272 + ... + 853897429.

It is an arithmetic number, because the mean of its divisors is an integer number (34155894040).

Almost surely, 2^134915781379 is an apocalyptic number.

134915781379 is a deficient number, since it is larger than the sum of its proper divisors (1707794781).

134915781379 is an equidigital number, since it uses as much as digits as its factorization.

134915781379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707794780.

The product of its digits is 5715360, while the sum is 58.

The spelling of 134915781379 in words is "one hundred thirty-four billion, nine hundred fifteen million, seven hundred eighty-one thousand, three hundred seventy-nine".