1511226 has 24 divisors (see below), whose sum is σ = 3332160. Its totient is φ = 494856.

The previous prime is 1511207. The next prime is 1511227. The reversal of 1511226 is 6221151.

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

It is a junction number, because it is equal to n+sod(n) for n = 1511199 and 1511208.

It is not an unprimeable number, because it can be changed into a prime (1511227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (138840).

2^1511226 is an apocalyptic number.

1511226 is an abundant number, since it is smaller than the sum of its proper divisors (1820934).

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

1511226 is a wasteful number, since it uses less digits than its factorization.

1511226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 1487 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 1511226 is about 1229.3193238537. The cubic root of 1511226 is about 114.7562828519.

Adding to 1511226 its reverse (6221151), we get a palindrome (7732377).

The spelling of 1511226 in words is "one million, five hundred eleven thousand, two hundred twenty-six".