1521122 has 4 divisors (see below), whose sum is σ = 2281686. Its totient is φ = 760560.

The previous prime is 1521119. The next prime is 1521133. The reversal of 1521122 is 2211251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2211251 = 7 ⋅315893.

It can be written as a sum of positive squares in only one way, i.e., 1437601 + 83521 = 1199^2 + 289^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1521097 and 1521106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380279 + ... + 380282.

2^1521122 is an apocalyptic number.

1521122 is a deficient number, since it is larger than the sum of its proper divisors (760564).

1521122 is an equidigital number, since it uses as much as digits as its factorization.

1521122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760563.

The product of its digits is 40, while the sum is 14.

The square root of 1521122 is about 1233.3377477398. The cubic root of 1521122 is about 115.0062252459.

Adding to 1521122 its reverse (2211251), we get a palindrome (3732373).

The spelling of 1521122 in words is "one million, five hundred twenty-one thousand, one hundred twenty-two".