1051816 has 8 divisors (see below), whose sum is σ = 1972170. Its totient is φ = 525904.

The previous prime is 1051811. The next prime is 1051819. The reversal of 1051816 is 6181501.

It can be written as a sum of positive squares in only one way, i.e., 624100 + 427716 = 790^2 + 654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1051816² = 2212633795712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65731 + ... + 65746.

2^1051816 is an apocalyptic number.

It is an amenable number.

1051816 is a deficient number, since it is larger than the sum of its proper divisors (920354).

1051816 is a wasteful number, since it uses less digits than its factorization.

1051816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131483 (or 131479 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1051816 is about 1025.5808110529. The cubic root of 1051816 is about 101.6981979894.

The spelling of 1051816 in words is "one million, fifty-one thousand, eight hundred sixteen".