1012251 has 8 divisors (see below), whose sum is σ = 1354320. Its totient is φ = 672512.

The previous prime is 1012241. The next prime is 1012259. The reversal of 1012251 is 1522101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012251 - 2¹¹ = 1010203 is a prime.

1012251 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1012259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411 + ... + 2003.

It is an arithmetic number, because the mean of its divisors is an integer number (169290).

2^1012251 is an apocalyptic number.

1012251 is a deficient number, since it is larger than the sum of its proper divisors (342069).

1012251 is an equidigital number, since it uses as much as digits as its factorization.

1012251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1012251 is about 1006.1068531722. The cubic root of 1012251 is about 100.4067102915.

Adding to 1012251 its reverse (1522101), we get a palindrome (2534352).

The spelling of 1012251 in words is "one million, twelve thousand, two hundred fifty-one".