134690242517 has 2 divisors, whose sum is σ = 134690242518. Its totient is φ = 134690242516.

The previous prime is 134690242487. The next prime is 134690242529. The reversal of 134690242517 is 715242096431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127087972036 + 7602270481 = 356494^2 + 87191^2 .

It is a cyclic number.

It is not a de Polignac number, because 134690242517 - 2²² = 134686048213 is a prime.

It is a super-2 number, since 2×134690242517² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134690242117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67345121258 + 67345121259.

It is an arithmetic number, because the mean of its divisors is an integer number (67345121259).

Almost surely, 2^134690242517 is an apocalyptic number.

It is an amenable number.

134690242517 is a deficient number, since it is larger than the sum of its proper divisors (1).

134690242517 is an equidigital number, since it uses as much as digits as its factorization.

134690242517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 134690242517 in words is "one hundred thirty-four billion, six hundred ninety million, two hundred forty-two thousand, five hundred seventeen".