134781912 has 48 divisors (see below), whose sum is σ = 366444000. Its totient is φ = 44753856.

The previous prime is 134781847. The next prime is 134781917. The reversal of 134781912 is 219187431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134781917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15889 + ... + 22847.

It is an arithmetic number, because the mean of its divisors is an integer number (7634250).

Almost surely, 2^134781912 is an apocalyptic number.

134781912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

134781912 is an abundant number, since it is smaller than the sum of its proper divisors (231662088).

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

134781912 is a wasteful number, since it uses less digits than its factorization.

134781912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7240 (or 7233 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 134781912 is about 11609.5612320191. The cubic root of 134781912 is about 512.7163942024.

It can be divided in two parts, 1347819 and 12, that multiplied together give a triangular number (16173828 = T₅₆₈₇).

The spelling of 134781912 in words is "one hundred thirty-four million, seven hundred eighty-one thousand, nine hundred twelve".