1010645 has 4 divisors (see below), whose sum is σ = 1212780. Its totient is φ = 808512.

The previous prime is 1010627. The next prime is 1010671. The reversal of 1010645 is 5460101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 252004 + 758641 = 502^2 + 871^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010645 - 2¹⁰ = 1009621 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101060 + ... + 101069.

It is an arithmetic number, because the mean of its divisors is an integer number (303195).

2^1010645 is an apocalyptic number.

It is an amenable number.

1010645 is a deficient number, since it is larger than the sum of its proper divisors (202135).

1010645 is an equidigital number, since it uses as much as digits as its factorization.

1010645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202134.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1010645 is about 1005.3084103896. The cubic root of 1010645 is about 100.3535816599.

Adding to 1010645 its reverse (5460101), we get a palindrome (6470746).

The spelling of 1010645 in words is "one million, ten thousand, six hundred forty-five".