1521249 has 8 divisors (see below), whose sum is σ = 2071680. Its totient is φ = 992496.

The previous prime is 1521241. The next prime is 1521269. The reversal of 1521249 is 9421251.

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

It is not a de Polignac number, because 1521249 - 2³ = 1521241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1521241) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5254 + ... + 5535.

It is an arithmetic number, because the mean of its divisors is an integer number (258960).

2^1521249 is an apocalyptic number.

It is an amenable number.

1521249 is a deficient number, since it is larger than the sum of its proper divisors (550431).

1521249 is a wasteful number, since it uses less digits than its factorization.

1521249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10839.

The product of its digits is 720, while the sum is 24.

The square root of 1521249 is about 1233.3892329674. The cubic root of 1521249 is about 115.0094258185.

It can be divided in two parts, 1521 and 249, that added together give a triangular number (1770 = T₅₉).

The spelling of 1521249 in words is "one million, five hundred twenty-one thousand, two hundred forty-nine".