1051906 has 4 divisors (see below), whose sum is σ = 1577862. Its totient is φ = 525952.

The previous prime is 1051903. The next prime is 1051913. The reversal of 1051906 is 6091501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6091501 = 13 ⋅468577.

It can be written as a sum of positive squares in only one way, i.e., 826281 + 225625 = 909^2 + 475^2 .

It is a super-2 number, since 2×1051906² = 2213012465672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262975 + ... + 262978.

2^1051906 is an apocalyptic number.

1051906 is a deficient number, since it is larger than the sum of its proper divisors (525956).

1051906 is an equidigital number, since it uses as much as digits as its factorization.

1051906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525955.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 1051906 is about 1025.6246876904. The cubic root of 1051906 is about 101.7010985528.

The spelling of 1051906 in words is "one million, fifty-one thousand, nine hundred six".