1188000449 has 2 divisors, whose sum is σ = 1188000450. Its totient is φ = 1188000448.

The previous prime is 1188000427. The next prime is 1188000469. The reversal of 1188000449 is 9440008811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 694849600 + 493150849 = 26360^2 + 22207^2 .

It is a cyclic number.

It is not a de Polignac number, because 1188000449 - 2²⁴ = 1171223233 is a prime.

It is a super-2 number, since 2×1188000449² = 2822690133648403202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1188000469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594000224 + 594000225.

It is an arithmetic number, because the mean of its divisors is an integer number (594000225).

Almost surely, 2^1188000449 is an apocalyptic number.

It is an amenable number.

1188000449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1188000449 is an equidigital number, since it uses as much as digits as its factorization.

1188000449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 1188000449 is about 34467.3823926332. The cubic root of 1188000449 is about 1059.1046340260.

The spelling of 1188000449 in words is "one billion, one hundred eighty-eight million, four hundred forty-nine", and thus it is an aban number.