137783966 has 8 divisors (see below), whose sum is σ = 208254024. Its totient is φ = 68365960.

The previous prime is 137783909. The next prime is 137783977. The reversal of 137783966 is 669387731.

137783966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262685 + ... + 263208.

It is an arithmetic number, because the mean of its divisors is an integer number (26031753).

Almost surely, 2^137783966 is an apocalyptic number.

137783966 is a deficient number, since it is larger than the sum of its proper divisors (70470058).

137783966 is a wasteful number, since it uses less digits than its factorization.

137783966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526026.

The product of its digits is 1143072, while the sum is 50.

The square root of 137783966 is about 11738.1415053662. The cubic root of 137783966 is about 516.4951254777.

The spelling of 137783966 in words is "one hundred thirty-seven million, seven hundred eighty-three thousand, nine hundred sixty-six".