1251012 has 48 divisors (see below), whose sum is σ = 3411072. Its totient is φ = 349440.

The previous prime is 1251011. The next prime is 1251037. The reversal of 1251012 is 2101521.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1251011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4312 + ... + 4592.

It is an arithmetic number, because the mean of its divisors is an integer number (71064).

2^1251012 is an apocalyptic number.

1251012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1251012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1705536).

1251012 is an abundant number, since it is smaller than the sum of its proper divisors (2160060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1251012 is a wasteful number, since it uses less digits than its factorization.

1251012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 346 counting only the distinct ones).

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

The square root of 1251012 is about 1118.4864773434. The cubic root of 1251012 is about 107.7507971654.

Adding to 1251012 its reverse (2101521), we get a palindrome (3352533).

The spelling of 1251012 in words is "one million, two hundred fifty-one thousand, twelve".