1201988467 has 2 divisors, whose sum is σ = 1201988468. Its totient is φ = 1201988466.

The previous prime is 1201988449. The next prime is 1201988477. The reversal of 1201988467 is 7648891021.

It is a strong prime.

It is an emirp because it is prime and its reverse (7648891021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201988467 - 2⁷ = 1201988339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201988477) 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, 600994233 + 600994234.

It is an arithmetic number, because the mean of its divisors is an integer number (600994234).

Almost surely, 2^1201988467 is an apocalyptic number.

1201988467 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201988467 is an equidigital number, since it uses as much as digits as its factorization.

1201988467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 1201988467 is about 34669.7053203514. The cubic root of 1201988467 is about 1063.2452067984.

The spelling of 1201988467 in words is "one billion, two hundred one million, nine hundred eighty-eight thousand, four hundred sixty-seven".