1551122 has 8 divisors (see below), whose sum is σ = 2449200. Its totient is φ = 734724.

The previous prime is 1551113. The next prime is 1551133. The reversal of 1551122 is 2211551.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1551122.

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, 20372 + ... + 20447.

It is an arithmetic number, because the mean of its divisors is an integer number (306150).

2^1551122 is an apocalyptic number.

1551122 is a deficient number, since it is larger than the sum of its proper divisors (898078).

1551122 is a wasteful number, since it uses less digits than its factorization.

1551122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40840.

The product of its digits is 100, while the sum is 17.

The square root of 1551122 is about 1245.4404843267. The cubic root of 1551122 is about 115.7573703881.

Adding to 1551122 its reverse (2211551), we get a palindrome (3762673).

The spelling of 1551122 in words is "one million, five hundred fifty-one thousand, one hundred twenty-two".