1051664 has 10 divisors (see below), whose sum is σ = 2037630. Its totient is φ = 525824.

The previous prime is 1051663. The next prime is 1051697. The reversal of 1051664 is 4661501.

It can be written as a sum of positive squares in only one way, i.e., 984064 + 67600 = 992^2 + 260^2 .

It is a super-2 number, since 2×1051664² = 2211994337792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32849 + ... + 32880.

It is an arithmetic number, because the mean of its divisors is an integer number (203763).

2^1051664 is an apocalyptic number.

It is an amenable number.

1051664 is a deficient number, since it is larger than the sum of its proper divisors (985966).

1051664 is an equidigital number, since it uses as much as digits as its factorization.

1051664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65737 (or 65731 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1051664 is about 1025.5067040249. The cubic root of 1051664 is about 101.6932988845.

The spelling of 1051664 in words is "one million, fifty-one thousand, six hundred sixty-four".