1150554149 has 4 divisors (see below), whose sum is σ = 1190228460. Its totient is φ = 1110879840.

The previous prime is 1150554143. The next prime is 1150554161. The reversal of 1150554149 is 9414550511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9414550511 = 967 ⋅9735833.

It can be written as a sum of positive squares in 2 ways, for example, as 935931649 + 214622500 = 30593^2 + 14650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150554149 - 2⁴ = 1150554133 is a prime.

It is a super-2 number, since 2×1150554149² = 2647549699562228402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150554143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19837112 + ... + 19837169.

It is an arithmetic number, because the mean of its divisors is an integer number (297557115).

Almost surely, 2^1150554149 is an apocalyptic number.

It is an amenable number.

1150554149 is a deficient number, since it is larger than the sum of its proper divisors (39674311).

1150554149 is an equidigital number, since it uses as much as digits as its factorization.

1150554149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39674310.

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 1150554149 is about 33919.8194128448. The cubic root of 1150554149 is about 1047.8578090816.

The spelling of 1150554149 in words is "one billion, one hundred fifty million, five hundred fifty-four thousand, one hundred forty-nine".