1501506 has 12 divisors (see below), whose sum is σ = 3253302. Its totient is φ = 500496.

The previous prime is 1501501. The next prime is 1501523. The reversal of 1501506 is 6051051.

It can be written as a sum of positive squares in only one way, i.e., 1476225 + 25281 = 1215^2 + 159^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 83417 = 1501506 / (1 + 5 + 0 + 1 + 5 + 0 + 6).

It is not an unprimeable number, because it can be changed into a prime (1501501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41691 + ... + 41726.

2^1501506 is an apocalyptic number.

1501506 is an abundant number, since it is smaller than the sum of its proper divisors (1751796).

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

1501506 is a wasteful number, since it uses less digits than its factorization.

1501506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83425 (or 83422 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 1501506 is about 1225.3595390741. The cubic root of 1501506 is about 114.5097212115.

Adding to 1501506 its reverse (6051051), we get a palindrome (7552557).

The spelling of 1501506 in words is "one million, five hundred one thousand, five hundred six".