134870423 has 2 divisors, whose sum is σ = 134870424. Its totient is φ = 134870422.

The previous prime is 134870381. The next prime is 134870431. The reversal of 134870423 is 324078431.

134870423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134870423 - 2⁸ = 134870167 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134870423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134870453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67435211 + 67435212.

It is an arithmetic number, because the mean of its divisors is an integer number (67435212).

Almost surely, 2^134870423 is an apocalyptic number.

134870423 is a deficient number, since it is larger than the sum of its proper divisors (1).

134870423 is an equidigital number, since it uses as much as digits as its factorization.

134870423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 134870423 is about 11613.3725936956. The cubic root of 134870423 is about 512.8286029052.

The spelling of 134870423 in words is "one hundred thirty-four million, eight hundred seventy thousand, four hundred twenty-three".