1197707138 has 16 divisors (see below), whose sum is σ = 1808386560. Its totient is φ = 594920400.

The previous prime is 1197707117. The next prime is 1197707141. The reversal of 1197707138 is 8317077911.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369308 + ... + 372536.

It is an arithmetic number, because the mean of its divisors is an integer number (113024160).

Almost surely, 2^1197707138 is an apocalyptic number.

1197707138 is a deficient number, since it is larger than the sum of its proper divisors (610679422).

1197707138 is a wasteful number, since it uses less digits than its factorization.

1197707138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393.

The product of its (nonzero) digits is 74088, while the sum is 44.

The square root of 1197707138 is about 34607.9057153131. The cubic root of 1197707138 is about 1061.9813239209.

The spelling of 1197707138 in words is "one billion, one hundred ninety-seven million, seven hundred seven thousand, one hundred thirty-eight".