667149134 has 4 divisors (see below), whose sum is σ = 1000723704. Its totient is φ = 333574566.

The previous prime is 667149113. The next prime is 667149149. The reversal of 667149134 is 431941766.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 667149091 and 667149100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166787282 + ... + 166787285.

It is an arithmetic number, because the mean of its divisors is an integer number (250180926).

Almost surely, 2^667149134 is an apocalyptic number.

667149134 is a deficient number, since it is larger than the sum of its proper divisors (333574570).

667149134 is a wasteful number, since it uses less digits than its factorization.

667149134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333574569.

The product of its digits is 108864, while the sum is 41.

The square root of 667149134 is about 25829.2302246892. The cubic root of 667149134 is about 873.7911509385.

The spelling of 667149134 in words is "six hundred sixty-seven million, one hundred forty-nine thousand, one hundred thirty-four".