1053489949 has 8 divisors (see below), whose sum is σ = 1115824248. Its totient is φ = 991196160.

The previous prime is 1053489929. The next prime is 1053489961. The reversal of 1053489949 is 9499843501.

It can be written as a sum of positive squares in 4 ways, for example, as 181764324 + 871725625 = 13482^2 + 29525^2 .

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 1053489949 - 2⁷ = 1053489821 is a prime.

It is a super-2 number, since 2×1053489949² = 2219682145288045202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1053489896 and 1053489905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053489929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55699 + ... + 72175.

It is an arithmetic number, because the mean of its divisors is an integer number (139478031).

Almost surely, 2^1053489949 is an apocalyptic number.

It is an amenable number.

1053489949 is a deficient number, since it is larger than the sum of its proper divisors (62334299).

1053489949 is a wasteful number, since it uses less digits than its factorization.

1053489949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20255.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 1053489949 is about 32457.5099014080. The cubic root of 1053489949 is about 1017.5211976741.

The spelling of 1053489949 in words is "one billion, fifty-three million, four hundred eighty-nine thousand, nine hundred forty-nine".