1197256983 has 16 divisors (see below), whose sum is σ = 1774596096. Its totient is φ = 713005920.

The previous prime is 1197256961. The next prime is 1197256987. The reversal of 1197256983 is 3896527911.

It is not a de Polignac number, because 1197256983 - 2¹⁴ = 1197240599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197256987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493935 + ... + 496352.

It is an arithmetic number, because the mean of its divisors is an integer number (110912256).

Almost surely, 2^1197256983 is an apocalyptic number.

1197256983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1197256983 is a deficient number, since it is larger than the sum of its proper divisors (577339113).

1197256983 is a wasteful number, since it uses less digits than its factorization.

1197256983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990334.

The product of its digits is 816480, while the sum is 51.

The square root of 1197256983 is about 34601.4014600565. The cubic root of 1197256983 is about 1061.8482596427.

The spelling of 1197256983 in words is "one billion, one hundred ninety-seven million, two hundred fifty-six thousand, nine hundred eighty-three".