134021917 has 2 divisors, whose sum is σ = 134021918. Its totient is φ = 134021916.

The previous prime is 134021911. The next prime is 134021947. The reversal of 134021917 is 719120431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120582361 + 13439556 = 10981^2 + 3666^2 .

It is a cyclic number.

It is not a de Polignac number, because 134021917 - 2²³ = 125633309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134021911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67010958 + 67010959.

It is an arithmetic number, because the mean of its divisors is an integer number (67010959).

Almost surely, 2^134021917 is an apocalyptic number.

It is an amenable number.

134021917 is a deficient number, since it is larger than the sum of its proper divisors (1).

134021917 is an equidigital number, since it uses as much as digits as its factorization.

134021917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 134021917 is about 11576.7835342983. The cubic root of 134021917 is about 511.7508922570.

The spelling of 134021917 in words is "one hundred thirty-four million, twenty-one thousand, nine hundred seventeen".