1501489 has 6 divisors (see below), whose sum is σ = 1650530. Its totient is φ = 1364880.

The previous prime is 1501483. The next prime is 1501499. The reversal of 1501489 is 9841051.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 874225 + 627264 = 935^2 + 792^2 .

It is not a de Polignac number, because 1501489 - 2³ = 1501481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1501481) 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 5 ways as a sum of consecutive naturals, for example, 6084 + ... + 6325.

2^1501489 is an apocalyptic number.

It is an amenable number.

1501489 is a deficient number, since it is larger than the sum of its proper divisors (149041).

1501489 is a wasteful number, since it uses less digits than its factorization.

1501489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12431 (or 12420 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1501489 is about 1225.3526023149. The cubic root of 1501489 is about 114.5092890514.

The spelling of 1501489 in words is "one million, five hundred one thousand, four hundred eighty-nine".