1506015 has 36 divisors (see below), whose sum is σ = 3041064. Its totient is φ = 687456.

The previous prime is 1506007. The next prime is 1506023. The reversal of 1506015 is 5106051.

Added to its reverse (5106051) it gives a triangular number (6612066 = T₃₆₃₆).

It is an interprime number because it is at equal distance from previous prime (1506007) and next prime (1506023).

It is not a de Polignac number, because 1506015 - 2³ = 1506007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1864 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (84474).

2^1506015 is an apocalyptic number.

1506015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1506015 is an abundant number, since it is smaller than the sum of its proper divisors (1535049).

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

1506015 is a wasteful number, since it uses less digits than its factorization.

1506015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 698 counting only the distinct ones).

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

The square root of 1506015 is about 1227.1980280297. The cubic root of 1506015 is about 114.6242303233.

Adding to 1506015 its reverse (5106051), we get a triangular number (6612066 = T₃₆₃₆).

The spelling of 1506015 in words is "one million, five hundred six thousand, fifteen".