1251342 has 16 divisors (see below), whose sum is σ = 2780880. Its totient is φ = 417096.

The previous prime is 1251329. The next prime is 1251409. The reversal of 1251342 is 2431521.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11533 + ... + 11640.

It is an arithmetic number, because the mean of its divisors is an integer number (173805).

2^1251342 is an apocalyptic number.

1251342 is an abundant number, since it is smaller than the sum of its proper divisors (1529538).

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

1251342 is a wasteful number, since it uses less digits than its factorization.

1251342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23184 (or 23178 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1251342 is about 1118.6339883984. The cubic root of 1251342 is about 107.7602707321.

Adding to 1251342 its reverse (2431521), we get a palindrome (3682863).

The spelling of 1251342 in words is "one million, two hundred fifty-one thousand, three hundred forty-two".