1358197889 has 2 divisors, whose sum is σ = 1358197890. Its totient is φ = 1358197888.

The previous prime is 1358197787. The next prime is 1358197903. The reversal of 1358197889 is 9887918531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 852172864 + 506025025 = 29192^2 + 22495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1358197889 - 2²⁴ = 1341420673 is a prime.

It is not a weakly prime, because it can be changed into another prime (1358797889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679098944 + 679098945.

It is an arithmetic number, because the mean of its divisors is an integer number (679098945).

Almost surely, 2^1358197889 is an apocalyptic number.

It is an amenable number.

1358197889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1358197889 is an equidigital number, since it uses as much as digits as its factorization.

1358197889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 59.

The square root of 1358197889 is about 36853.7364320092. The cubic root of 1358197889 is about 1107.4420684198.

The spelling of 1358197889 in words is "one billion, three hundred fifty-eight million, one hundred ninety-seven thousand, eight hundred eighty-nine".