134313021 has 6 divisors (see below), whose sum is σ = 194007710. Its totient is φ = 89542008.

The previous prime is 134313017. The next prime is 134313061. The reversal of 134313021 is 120313431.

It can be written as a sum of positive squares in only one way, i.e., 134304921 + 8100 = 11589^2 + 90^2 .

It is not a de Polignac number, because 134313021 - 2² = 134313017 is a prime.

It is a super-2 number, since 2×134313021² = 36079975220292882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134312985 and 134313003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134313001) 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 5 ways as a sum of consecutive naturals, for example, 7461826 + ... + 7461843.

Almost surely, 2^134313021 is an apocalyptic number.

It is an amenable number.

134313021 is a deficient number, since it is larger than the sum of its proper divisors (59694689).

134313021 is a wasteful number, since it uses less digits than its factorization.

134313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14923675 (or 14923672 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 134313021 is about 11589.3494640553. The cubic root of 134313021 is about 512.1211426501.

Adding to 134313021 its reverse (120313431), we get a palindrome (254626452).

The spelling of 134313021 in words is "one hundred thirty-four million, three hundred thirteen thousand, twenty-one".