1197196957 has 4 divisors (see below), whose sum is σ = 1306033056. Its totient is φ = 1088360860.

The previous prime is 1197196951. The next prime is 1197196981. The reversal of 1197196957 is 7596917911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1197196957 - 2²³ = 1188808349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1197196898 and 1197196907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197196951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54418033 + ... + 54418054.

It is an arithmetic number, because the mean of its divisors is an integer number (326508264).

Almost surely, 2^1197196957 is an apocalyptic number.

It is an amenable number.

1197196957 is a deficient number, since it is larger than the sum of its proper divisors (108836099).

1197196957 is a wasteful number, since it uses less digits than its factorization.

1197196957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108836098.

The product of its digits is 1071630, while the sum is 55.

The square root of 1197196957 is about 34600.5340565720. The cubic root of 1197196957 is about 1061.8305136423.

The spelling of 1197196957 in words is "one billion, one hundred ninety-seven million, one hundred ninety-six thousand, nine hundred fifty-seven".