1197925019 has 2 divisors, whose sum is σ = 1197925020. Its totient is φ = 1197925018.

The previous prime is 1197925013. The next prime is 1197925021. The reversal of 1197925019 is 9105297911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1197925019 - 2¹² = 1197920923 is a prime.

It is a super-3 number, since 3×1197925019³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 1197925021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1197925013) 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, 598962509 + 598962510.

It is an arithmetic number, because the mean of its divisors is an integer number (598962510).

Almost surely, 2^1197925019 is an apocalyptic number.

1197925019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197925019 is an equidigital number, since it uses as much as digits as its factorization.

1197925019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 44.

The square root of 1197925019 is about 34611.0534222812. The cubic root of 1197925019 is about 1062.0457168252.

The spelling of 1197925019 in words is "one billion, one hundred ninety-seven million, nine hundred twenty-five thousand, nineteen".