1012197 has 16 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 625152.

The previous prime is 1012189. The next prime is 1012201. The reversal of 1012197 is 7912101.

It is not a de Polignac number, because 1012197 - 2³ = 1012189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4428 + ... + 4650.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2^1012197 is an apocalyptic number.

1012197 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1012197 is a deficient number, since it is larger than the sum of its proper divisors (439323).

1012197 is a wasteful number, since it uses less digits than its factorization.

1012197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 1012197 is about 1006.0800166985. The cubic root of 1012197 is about 100.4049248125.

Adding to 1012197 its reverse (7912101), we get a palindrome (8924298).

The spelling of 1012197 in words is "one million, twelve thousand, one hundred ninety-seven".