134690242487 has 2 divisors, whose sum is σ = 134690242488. Its totient is φ = 134690242486.

The previous prime is 134690242483. The next prime is 134690242517. The reversal of 134690242487 is 784242096431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134690242487 - 2² = 134690242483 is a prime.

It is a super-2 number, since 2×134690242487² (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 (134690242481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67345121243 + 67345121244.

It is an arithmetic number, because the mean of its divisors is an integer number (67345121244).

Almost surely, 2^134690242487 is an apocalyptic number.

134690242487 is a deficient number, since it is larger than the sum of its proper divisors (1).

134690242487 is an equidigital number, since it uses as much as digits as its factorization.

134690242487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 134690242487 in words is "one hundred thirty-four billion, six hundred ninety million, two hundred forty-two thousand, four hundred eighty-seven".