1197958019 has 2 divisors, whose sum is σ = 1197958020. Its totient is φ = 1197958018.

The previous prime is 1197958001. The next prime is 1197958031. The reversal of 1197958019 is 9108597911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1197958019 - 2¹² = 1197953923 is a prime.

It is a super-3 number, since 3×1197958019³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1197958039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598979009 + 598979010.

It is an arithmetic number, because the mean of its divisors is an integer number (598979010).

Almost surely, 2^1197958019 is an apocalyptic number.

1197958019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197958019 is an equidigital number, since it uses as much as digits as its factorization.

1197958019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 50.

The square root of 1197958019 is about 34611.5301453143. The cubic root of 1197958019 is about 1062.0554690179.

The spelling of 1197958019 in words is "one billion, one hundred ninety-seven million, nine hundred fifty-eight thousand, nineteen".