966203138 has 4 divisors (see below), whose sum is σ = 1449304710. Its totient is φ = 483101568.

The previous prime is 966203137. The next prime is 966203153. The reversal of 966203138 is 831302669.

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

It can be written as a sum of positive squares in only one way, i.e., 744580369 + 221622769 = 27287^2 + 14887^2 .

It is not an unprimeable number, because it can be changed into a prime (966203131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241550783 + ... + 241550786.

Almost surely, 2^966203138 is an apocalyptic number.

966203138 is a deficient number, since it is larger than the sum of its proper divisors (483101572).

966203138 is a wasteful number, since it uses less digits than its factorization.

966203138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483101571.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 966203138 is about 31083.8082930647. The cubic root of 966203138 is about 988.6050271214.

The spelling of 966203138 in words is "nine hundred sixty-six million, two hundred three thousand, one hundred thirty-eight".