134715971920 has 40 divisors (see below), whose sum is σ = 315025156296. Its totient is φ = 53574901248.

The previous prime is 134715971857. The next prime is 134715971927. The reversal of 134715971920 is 29179517431.

It can be written as a sum of positive squares in 4 ways, for example, as 28864650816 + 105851321104 = 169896^2 + 325348^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134715971927) 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, 4853067 + ... + 4880746.

Almost surely, 2^134715971920 is an apocalyptic number.

134715971920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134715971920 is an abundant number, since it is smaller than the sum of its proper divisors (180309184376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134715971920 is a wasteful number, since it uses less digits than its factorization.

134715971920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9733999 (or 9733993 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 49.

The spelling of 134715971920 in words is "one hundred thirty-four billion, seven hundred fifteen million, nine hundred seventy-one thousand, nine hundred twenty".