1121495049 has 24 divisors (see below), whose sum is σ = 1761594120. Its totient is φ = 684661248.

The previous prime is 1121495041. The next prime is 1121495051. The reversal of 1121495049 is 9405941211.

It is a happy number.

1121495049 is a `hidden beast` number, since 1 + 1 + 2 + 149 + 504 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 362217024 + 759278025 = 19032^2 + 27555^2 .

It is not a de Polignac number, because 1121495049 - 2³ = 1121495041 is a prime.

It is a super-2 number, since 2×1121495049² = 2515502289863024802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121495041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93394 + ... + 104715.

It is an arithmetic number, because the mean of its divisors is an integer number (73399755).

Almost surely, 2^1121495049 is an apocalyptic number.

It is an amenable number.

1121495049 is a deficient number, since it is larger than the sum of its proper divisors (640099071).

1121495049 is a wasteful number, since it uses less digits than its factorization.

1121495049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198169 (or 198166 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1121495049 is about 33488.7301789721. The cubic root of 1121495049 is about 1038.9607002198.

The spelling of 1121495049 in words is "one billion, one hundred twenty-one million, four hundred ninety-five thousand, forty-nine".