134215429 has 2 divisors, whose sum is σ = 134215430. Its totient is φ = 134215428.

The previous prime is 134215379. The next prime is 134215441. The reversal of 134215429 is 924512431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123988225 + 10227204 = 11135^2 + 3198^2 .

It is a cyclic number.

It is not a de Polignac number, because 134215429 - 2¹¹ = 134213381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134215429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134215229) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67107714 + 67107715.

It is an arithmetic number, because the mean of its divisors is an integer number (67107715).

Almost surely, 2^134215429 is an apocalyptic number.

It is an amenable number.

134215429 is a deficient number, since it is larger than the sum of its proper divisors (1).

134215429 is an equidigital number, since it uses as much as digits as its factorization.

134215429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 134215429 is about 11585.1382814363. The cubic root of 134215429 is about 511.9970766536.

The spelling of 134215429 in words is "one hundred thirty-four million, two hundred fifteen thousand, four hundred twenty-nine".