1012945 has 12 divisors (see below), whose sum is σ = 1293084. Its totient is φ = 761600.

The previous prime is 1012931. The next prime is 1012967. The reversal of 1012945 is 5492101.

It can be written as a sum of positive squares in 6 ways, for example, as 173889 + 839056 = 417^2 + 916^2 .

It is not a de Polignac number, because 1012945 - 2⁹ = 1012433 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1095 + ... + 1795.

It is an arithmetic number, because the mean of its divisors is an integer number (107757).

2^1012945 is an apocalyptic number.

It is an amenable number.

1012945 is a deficient number, since it is larger than the sum of its proper divisors (280139).

1012945 is an equidigital number, since it uses as much as digits as its factorization.

1012945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1012945 is about 1006.4516878619. The cubic root of 1012945 is about 100.4296513534.

The spelling of 1012945 in words is "one million, twelve thousand, nine hundred forty-five".