134921828 has 6 divisors (see below), whose sum is σ = 236113206. Its totient is φ = 67460912.

The previous prime is 134921803. The next prime is 134921837. The reversal of 134921828 is 828129431.

It can be written as a sum of positive squares in only one way, i.e., 104693824 + 30228004 = 10232^2 + 5498^2 .

It is a junction number, because it is equal to n+sod(n) for n = 134921791 and 134921800.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16865225 + ... + 16865232.

It is an arithmetic number, because the mean of its divisors is an integer number (39352201).

Almost surely, 2^134921828 is an apocalyptic number.

It is an amenable number.

134921828 is a deficient number, since it is larger than the sum of its proper divisors (101191378).

134921828 is a wasteful number, since it uses less digits than its factorization.

134921828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33730461 (or 33730459 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 134921828 is about 11615.5855642322. The cubic root of 134921828 is about 512.8937484111.

The spelling of 134921828 in words is "one hundred thirty-four million, nine hundred twenty-one thousand, eight hundred twenty-eight".