1197958001 has 2 divisors, whose sum is σ = 1197958002. Its totient is φ = 1197958000.

The previous prime is 1197957973. The next prime is 1197958019. The reversal of 1197958001 is 1008597911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1161173776 + 36784225 = 34076^2 + 6065^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197958001 - 2¹⁴ = 1197941617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1197958001.

It is not a weakly prime, because it can be changed into another prime (1197958031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598979000 + 598979001.

It is an arithmetic number, because the mean of its divisors is an integer number (598979001).

Almost surely, 2^1197958001 is an apocalyptic number.

It is an amenable number.

1197958001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197958001 is an equidigital number, since it uses as much as digits as its factorization.

1197958001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 41.

The square root of 1197958001 is about 34611.5298852853. The cubic root of 1197958001 is about 1062.0554636986.

The spelling of 1197958001 in words is "one billion, one hundred ninety-seven million, nine hundred fifty-eight thousand, one".