134878963 has 2 divisors, whose sum is σ = 134878964. Its totient is φ = 134878962.

The previous prime is 134878951. The next prime is 134878979. The reversal of 134878963 is 369878431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134878963 is a prime.

It is not a weakly prime, because it can be changed into another prime (134878903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67439481 + 67439482.

It is an arithmetic number, because the mean of its divisors is an integer number (67439482).

Almost surely, 2^134878963 is an apocalyptic number.

134878963 is a deficient number, since it is larger than the sum of its proper divisors (1).

134878963 is an equidigital number, since it uses as much as digits as its factorization.

134878963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 134878963 is about 11613.7402674591. The cubic root of 134878963 is about 512.8394267852.

The spelling of 134878963 in words is "one hundred thirty-four million, eight hundred seventy-eight thousand, nine hundred sixty-three".