1251022 has 8 divisors (see below), whose sum is σ = 1881576. Its totient is φ = 623832.

The previous prime is 1251011. The next prime is 1251037. The reversal of 1251022 is 2201521.

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

It is a junction number, because it is equal to n+sod(n) for n = 1250993 and 1251011.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 553 + ... + 1675.

It is an arithmetic number, because the mean of its divisors is an integer number (235197).

2^1251022 is an apocalyptic number.

1251022 is a deficient number, since it is larger than the sum of its proper divisors (630554).

1251022 is a wasteful number, since it uses less digits than its factorization.

1251022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1251022 is about 1118.4909476612. The cubic root of 1251022 is about 107.7510842676.

Adding to 1251022 its reverse (2201521), we get a palindrome (3452543).

The spelling of 1251022 in words is "one million, two hundred fifty-one thousand, twenty-two".