119491387 has 2 divisors, whose sum is σ = 119491388. Its totient is φ = 119491386.

The previous prime is 119491381. The next prime is 119491441. The reversal of 119491387 is 783194911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 119491387 - 2⁷ = 119491259 is a prime.

It is not a weakly prime, because it can be changed into another prime (119491381) 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, 59745693 + 59745694.

It is an arithmetic number, because the mean of its divisors is an integer number (59745694).

Almost surely, 2^119491387 is an apocalyptic number.

119491387 is a deficient number, since it is larger than the sum of its proper divisors (1).

119491387 is an equidigital number, since it uses as much as digits as its factorization.

119491387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 43.

The square root of 119491387 is about 10931.2115979886. The cubic root of 119491387 is about 492.5445682738.

The spelling of 119491387 in words is "one hundred nineteen million, four hundred ninety-one thousand, three hundred eighty-seven".