1054118509 has 4 divisors (see below), whose sum is σ = 1066818816. Its totient is φ = 1041418204.

The previous prime is 1054118503. The next prime is 1054118519. The reversal of 1054118509 is 9058114501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9058114501 = 12163 ⋅744727.

It is a cyclic number.

It is not a de Polignac number, because 1054118509 - 2³ = 1054118501 is a prime.

It is a super-2 number, since 2×1054118509² = 2222331662032766162, 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 (1054118501) 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 in 3 ways as a sum of consecutive naturals, for example, 6350029 + ... + 6350194.

It is an arithmetic number, because the mean of its divisors is an integer number (266704704).

Almost surely, 2^1054118509 is an apocalyptic number.

It is an amenable number.

1054118509 is a deficient number, since it is larger than the sum of its proper divisors (12700307).

1054118509 is an equidigital number, since it uses as much as digits as its factorization.

1054118509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12700306.

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 1054118509 is about 32467.1912705734. The cubic root of 1054118509 is about 1017.7235239096.

The spelling of 1054118509 in words is "one billion, fifty-four million, one hundred eighteen thousand, five hundred nine".