1055631 has 8 divisors (see below), whose sum is σ = 1468800. Its totient is φ = 673112.

The previous prime is 1055611. The next prime is 1055671. The reversal of 1055631 is 1365501.

It is a happy number.

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 1055631 - 2⁶ = 1055567 is a prime.

It is a super-2 number, since 2×1055631² = 2228713616322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1055598 and 1055607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055611) 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, 7581 + ... + 7718.

It is an arithmetic number, because the mean of its divisors is an integer number (183600).

2^1055631 is an apocalyptic number.

1055631 is a deficient number, since it is larger than the sum of its proper divisors (413169).

1055631 is a wasteful number, since it uses less digits than its factorization.

1055631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15325.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1055631 is about 1027.4390492871. The cubic root of 1055631 is about 101.8210047967.

The spelling of 1055631 in words is "one million, fifty-five thousand, six hundred thirty-one".