1053639 has 6 divisors (see below), whose sum is σ = 1521936. Its totient is φ = 702420.

The previous prime is 1053617. The next prime is 1053691. The reversal of 1053639 is 9363501.

It is not a de Polignac number, because 1053639 - 2⁷ = 1053511 is a prime.

It is a super-2 number, since 2×1053639² = 2220310284642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053539) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58527 + ... + 58544.

It is an arithmetic number, because the mean of its divisors is an integer number (253656).

2^1053639 is an apocalyptic number.

1053639 is a deficient number, since it is larger than the sum of its proper divisors (468297).

1053639 is a wasteful number, since it uses less digits than its factorization.

1053639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117077 (or 117074 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 1053639 is about 1026.4691909648. The cubic root of 1053639 is about 101.7569182755.

The spelling of 1053639 in words is "one million, fifty-three thousand, six hundred thirty-nine".