134643646 has 8 divisors (see below), whose sum is σ = 202717080. Its totient is φ = 67071288.

The previous prime is 134643643. The next prime is 134643647. The reversal of 134643646 is 646346431.

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

It is a super-2 number, since 2×134643646² = 36257822816346632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134643643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124596 + ... + 125671.

It is an arithmetic number, because the mean of its divisors is an integer number (25339635).

Almost surely, 2^134643646 is an apocalyptic number.

134643646 is a deficient number, since it is larger than the sum of its proper divisors (68073434).

134643646 is a wasteful number, since it uses less digits than its factorization.

134643646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250538.

The product of its digits is 124416, while the sum is 37.

The square root of 134643646 is about 11603.6048709011. The cubic root of 134643646 is about 512.5410108764.

The spelling of 134643646 in words is "one hundred thirty-four million, six hundred forty-three thousand, six hundred forty-six".