1197610819 has 2 divisors, whose sum is σ = 1197610820. Its totient is φ = 1197610818.

The previous prime is 1197610811. The next prime is 1197610823. The reversal of 1197610819 is 9180167911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1197610819 - 2³ = 1197610811 is a prime.

It is a super-2 number, since 2×1197610819² = 2868543347571701522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1197610811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598805409 + 598805410.

It is an arithmetic number, because the mean of its divisors is an integer number (598805410).

Almost surely, 2^1197610819 is an apocalyptic number.

1197610819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197610819 is an equidigital number, since it uses as much as digits as its factorization.

1197610819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 43.

The square root of 1197610819 is about 34606.5141122304. The cubic root of 1197610819 is about 1061.9528551581.

The spelling of 1197610819 in words is "one billion, one hundred ninety-seven million, six hundred ten thousand, eight hundred nineteen".