1149919 has 2 divisors, whose sum is σ = 1149920. Its totient is φ = 1149918.

The previous prime is 1149917. The next prime is 1149943. The reversal of 1149919 is 9199411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1149919 - 2¹ = 1149917 is a prime.

It is a super-2 number, since 2×1149919² = 2644627413122, which contains 22 as substring.

Together with 1149917, it forms a pair of twin primes.

It is equal to p₈₉₂₉₆ and since 1149919 and 89296 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1149913) 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, 574959 + 574960.

It is an arithmetic number, because the mean of its divisors is an integer number (574960).

2^1149919 is an apocalyptic number.

1149919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149919 is an equidigital number, since it uses as much as digits as its factorization.

1149919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 34.

The square root of 1149919 is about 1072.3427623666. The cubic root of 1149919 is about 104.7664954665.

The spelling of 1149919 in words is "one million, one hundred forty-nine thousand, nine hundred nineteen".