1012291 has 12 divisors (see below), whose sum is σ = 1197912. Its totient is φ = 852768.

The previous prime is 1012289. The next prime is 1012307. The reversal of 1012291 is 1922101.

It is not a de Polignac number, because 1012291 - 2¹ = 1012289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3436 + ... + 3718.

It is an arithmetic number, because the mean of its divisors is an integer number (99826).

2^1012291 is an apocalyptic number.

1012291 is a deficient number, since it is larger than the sum of its proper divisors (185621).

1012291 is an equidigital number, since it uses as much as digits as its factorization.

1012291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1012291 is about 1006.1267315801. The cubic root of 1012291 is about 100.4080328277.

Adding to 1012291 its reverse (1922101), we get a palindrome (2934392).

It can be divided in two parts, 1012 and 291, that multiplied together give a palindrome (294492).

The spelling of 1012291 in words is "one million, twelve thousand, two hundred ninety-one".