1521126 has 32 divisors (see below), whose sum is σ = 3581280. Its totient is φ = 476928.

The previous prime is 1521119. The next prime is 1521133. The reversal of 1521126 is 6211251.

It is an interprime number because it is at equal distance from previous prime (1521119) and next prime (1521133).

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 = 1521099 and 1521108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90 + ... + 1746.

It is an arithmetic number, because the mean of its divisors is an integer number (111915).

2^1521126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1521126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1790640).

1521126 is an abundant number, since it is smaller than the sum of its proper divisors (2060154).

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

1521126 is a wasteful number, since it uses less digits than its factorization.

1521126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685 (or 1679 counting only the distinct ones).

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

The square root of 1521126 is about 1233.3393693546. The cubic root of 1521126 is about 115.0063260540.

Adding to 1521126 its reverse (6211251), we get a palindrome (7732377).

The spelling of 1521126 in words is "one million, five hundred twenty-one thousand, one hundred twenty-six".