1055431 has 8 divisors (see below), whose sum is σ = 1196720. Its totient is φ = 922752.

The previous prime is 1055429. The next prime is 1055437. The reversal of 1055431 is 1345501.

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 1055431 - 2¹ = 1055429 is a prime.

It is a super-2 number, since 2×1055431² = 2227869191522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1055399 and 1055408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055437) 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, 1890 + ... + 2383.

It is an arithmetic number, because the mean of its divisors is an integer number (149590).

2^1055431 is an apocalyptic number.

1055431 is a deficient number, since it is larger than the sum of its proper divisors (141289).

1055431 is a wasteful number, since it uses less digits than its factorization.

1055431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1055431 is about 1027.3417153022. The cubic root of 1055431 is about 101.8145740498.

It can be divided in two parts, 10554 and 31, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 1055431 in words is "one million, fifty-five thousand, four hundred thirty-one".