134406623 has 8 divisors (see below), whose sum is σ = 146906928. Its totient is φ = 122215104.

The previous prime is 134406611. The next prime is 134406637. The reversal of 134406623 is 326604431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134406623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134406673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76286 + ... + 78027.

It is an arithmetic number, because the mean of its divisors is an integer number (18363366).

Almost surely, 2^134406623 is an apocalyptic number.

134406623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

134406623 is a deficient number, since it is larger than the sum of its proper divisors (12500305).

134406623 is a wasteful number, since it uses less digits than its factorization.

134406623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154393.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 134406623 is about 11593.3870374451. The cubic root of 134406623 is about 512.2400798209.

The spelling of 134406623 in words is "one hundred thirty-four million, four hundred six thousand, six hundred twenty-three".