1207138195 has 16 divisors (see below), whose sum is σ = 1535073120. Its totient is φ = 909664000.

The previous prime is 1207138151. The next prime is 1207138217. The reversal of 1207138195 is 5918317021.

It is not a de Polignac number, because 1207138195 - 2⁷ = 1207138067 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95581 + ... + 107470.

It is an arithmetic number, because the mean of its divisors is an integer number (95942070).

Almost surely, 2^1207138195 is an apocalyptic number.

1207138195 is a deficient number, since it is larger than the sum of its proper divisors (327934925).

1207138195 is a wasteful number, since it uses less digits than its factorization.

1207138195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203126.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 1207138195 is about 34743.8943556994. The cubic root of 1207138195 is about 1064.7614783198.

The spelling of 1207138195 in words is "one billion, two hundred seven million, one hundred thirty-eight thousand, one hundred ninety-five".