1197009001 has 2 divisors, whose sum is σ = 1197009002. Its totient is φ = 1197009000.

The previous prime is 1197008993. The next prime is 1197009029. The reversal of 1197009001 is 1009007911.

It is the 14125-th star number.

It is an a-pointer prime, because the next prime (1197009029) can be obtained adding 1197009001 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 956293776 + 240715225 = 30924^2 + 15515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197009001 - 2³ = 1197008993 is a prime.

It is a super-3 number, since 3×1197009001³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1197009031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598504500 + 598504501.

It is an arithmetic number, because the mean of its divisors is an integer number (598504501).

Almost surely, 2^1197009001 is an apocalyptic number.

It is an amenable number.

1197009001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197009001 is an equidigital number, since it uses as much as digits as its factorization.

1197009001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 28.

The square root of 1197009001 is about 34597.8178647151. The cubic root of 1197009001 is about 1061.7749427634.

The spelling of 1197009001 in words is "one billion, one hundred ninety-seven million, nine thousand, one".