1047553 has 8 divisors (see below), whose sum is σ = 1147496. Its totient is φ = 950400.

The previous prime is 1047551. The next prime is 1047559. The reversal of 1047553 is 3557401.

It can be written as a sum of positive squares in 4 ways, for example, as 23409 + 1024144 = 153^2 + 1012^2 .

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 1047553 - 2¹ = 1047551 is a prime.

It is a super-3 number, since 3×1047553³ = 3448651183338544131, which contains 333 as substring.

It is the 1024-th Hogben number.

It is a Duffinian number.

1047553 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1047551) by changing a digit.

It is a nontrivial repunit in base 1023.

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 7 ways as a sum of consecutive naturals, for example, 133 + ... + 1453.

It is an arithmetic number, because the mean of its divisors is an integer number (143437).

It is a Proth number, since it is equal to 1023 ⋅ 2¹⁰ + 1 and 1023 < 2¹⁰.

2^1047553 is an apocalyptic number.

1047553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1047553 is a deficient number, since it is larger than the sum of its proper divisors (99943).

1047553 is a wasteful number, since it uses less digits than its factorization.

1047553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 1047553 is about 1023.5003663898. The cubic root of 1047553 is about 101.5606180164.

It can be divided in two parts, 1047 and 553, that added together give a square (1600 = 40²).

The spelling of 1047553 in words is "one million, forty-seven thousand, five hundred fifty-three".