1520487 has 6 divisors (see below), whose sum is σ = 2196272. Its totient is φ = 1013652.

The previous prime is 1520483. The next prime is 1520501. The reversal of 1520487 is 7840251.

It is not a de Polignac number, because 1520487 - 2² = 1520483 is a prime.

It is a Duffinian number.

1520487 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1520487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520483) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 84463 + ... + 84480.

2^1520487 is an apocalyptic number.

1520487 is a deficient number, since it is larger than the sum of its proper divisors (675785).

1520487 is a wasteful number, since it uses less digits than its factorization.

1520487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168949 (or 168946 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1520487 is about 1233.0802893567. The cubic root of 1520487 is about 114.9902197102.

It can be divided in two parts, 15 and 20487, that added together give a palindrome (20502).

The spelling of 1520487 in words is "one million, five hundred twenty thousand, four hundred eighty-seven".