1054489813 has 8 divisors (see below), whose sum is σ = 1147313048. Its totient is φ = 963339264.

The previous prime is 1054489789. The next prime is 1054489819. The reversal of 1054489813 is 3189844501.

It can be written as a sum of positive squares in 4 ways, for example, as 234641124 + 819848689 = 15318^2 + 28633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1054489813 - 2¹⁷ = 1054358741 is a prime.

It is a super-2 number, since 2×1054489813² = 2223897531441549938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1054489813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054489819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416856 + ... + 419377.

It is an arithmetic number, because the mean of its divisors is an integer number (143414131).

Almost surely, 2^1054489813 is an apocalyptic number.

1054489813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1054489813 is a deficient number, since it is larger than the sum of its proper divisors (92823235).

1054489813 is an equidigital number, since it uses as much as digits as its factorization.

1054489813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836343.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1054489813 is about 32472.9089088120. The cubic root of 1054489813 is about 1017.8430046106.

The spelling of 1054489813 in words is "one billion, fifty-four million, four hundred eighty-nine thousand, eight hundred thirteen".