1197940567 has 4 divisors (see below), whose sum is σ = 1198084536. Its totient is φ = 1197796600.

The previous prime is 1197940561. The next prime is 1197940571. The reversal of 1197940567 is 7650497911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7650497911 = 7 ⋅1092928273.

It is a cyclic number.

It is not a de Polignac number, because 1197940567 - 2¹⁹ = 1197416279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1197940567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197940561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58684 + ... + 76417.

It is an arithmetic number, because the mean of its divisors is an integer number (299521134).

Almost surely, 2^1197940567 is an apocalyptic number.

1197940567 is a deficient number, since it is larger than the sum of its proper divisors (143969).

1197940567 is an equidigital number, since it uses as much as digits as its factorization.

1197940567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143968.

The product of its (nonzero) digits is 476280, while the sum is 49.

The square root of 1197940567 is about 34611.2780318786. The cubic root of 1197940567 is about 1062.0503116079.

The spelling of 1197940567 in words is "one billion, one hundred ninety-seven million, nine hundred forty thousand, five hundred sixty-seven".