1251042 has 32 divisors (see below), whose sum is σ = 2764608. Its totient is φ = 374976.

The previous prime is 1251037. The next prime is 1251043. The reversal of 1251042 is 2401521.

It is not an unprimeable number, because it can be changed into a prime (1251043) 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, 3168 + ... + 3540.

It is an arithmetic number, because the mean of its divisors is an integer number (86394).

2^1251042 is an apocalyptic number.

It is a pronic number, being equal to 1118×1119.

It is a practical number, because each smaller number is the sum of distinct divisors of 1251042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382304).

1251042 is an abundant number, since it is smaller than the sum of its proper divisors (1513566).

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

1251042 is a wasteful number, since it uses less digits than its factorization.

1251042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1251042 is about 1118.4998882432. The cubic root of 1251042 is about 107.7516584676.

Adding to 1251042 its reverse (2401521), we get a palindrome (3652563).

The spelling of 1251042 in words is "one million, two hundred fifty-one thousand, forty-two".