1251542 has 8 divisors (see below), whose sum is σ = 1912896. Its totient is φ = 613912.

The previous prime is 1251533. The next prime is 1251571. The reversal of 1251542 is 2451521.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5798 + ... + 6009.

It is an arithmetic number, because the mean of its divisors is an integer number (239112).

2^1251542 is an apocalyptic number.

1251542 is a deficient number, since it is larger than the sum of its proper divisors (661354).

1251542 is a wasteful number, since it uses less digits than its factorization.

1251542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11862.

The product of its digits is 400, while the sum is 20.

The square root of 1251542 is about 1118.7233795716. The cubic root of 1251542 is about 107.7660114771.

The spelling of 1251542 in words is "one million, two hundred fifty-one thousand, five hundred forty-two".