1956343197 has 8 divisors (see below), whose sum is σ = 2613044160. Its totient is φ = 1301935520.

The previous prime is 1956343163. The next prime is 1956343201. The reversal of 1956343197 is 7913436591.

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

It is a cyclic number.

It is not a de Polignac number, because 1956343197 - 2¹⁰ = 1956342173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956343157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571329 + ... + 574742.

It is an arithmetic number, because the mean of its divisors is an integer number (326630520).

Almost surely, 2^1956343197 is an apocalyptic number.

It is an amenable number.

1956343197 is a deficient number, since it is larger than the sum of its proper divisors (656700963).

1956343197 is a wasteful number, since it uses less digits than its factorization.

1956343197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146643.

The product of its digits is 612360, while the sum is 48.

The square root of 1956343197 is about 44230.5685810165. The cubic root of 1956343197 is about 1250.6861719588.

The spelling of 1956343197 in words is "one billion, nine hundred fifty-six million, three hundred forty-three thousand, one hundred ninety-seven".