134675021 has 12 divisors (see below), whose sum is σ = 153075132. Its totient is φ = 117768384.

The previous prime is 134675017. The next prime is 134675027. The reversal of 134675021 is 120576431.

It can be written as a sum of positive squares in 2 ways, for example, as 15319396 + 119355625 = 3914^2 + 10925^2 .

It is not a de Polignac number, because 134675021 - 2² = 134675017 is a prime.

It is a super-2 number, since 2×134675021² = 36274722562700882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134675027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9656 + ... + 19041.

It is an arithmetic number, because the mean of its divisors is an integer number (12756261).

Almost surely, 2^134675021 is an apocalyptic number.

It is an amenable number.

134675021 is a deficient number, since it is larger than the sum of its proper divisors (18400111).

134675021 is a wasteful number, since it uses less digits than its factorization.

134675021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28748 (or 28729 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 134675021 is about 11604.9567427027. The cubic root of 134675021 is about 512.5808189817.

It can be divided in two parts, 1346 and 75021, that added together give a palindrome (76367).

The spelling of 134675021 in words is "one hundred thirty-four million, six hundred seventy-five thousand, twenty-one".