1506243 has 4 divisors (see below), whose sum is σ = 2008328. Its totient is φ = 1004160.

The previous prime is 1506229. The next prime is 1506257. The reversal of 1506243 is 3426051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3426051 = 3 ⋅1142017.

It is an interprime number because it is at equal distance from previous prime (1506229) and next prime (1506257).

It is not a de Polignac number, because 1506243 - 2⁶ = 1506179 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1506203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251038 + ... + 251043.

It is an arithmetic number, because the mean of its divisors is an integer number (502082).

2^1506243 is an apocalyptic number.

1506243 is a deficient number, since it is larger than the sum of its proper divisors (502085).

1506243 is an equidigital number, since it uses as much as digits as its factorization.

1506243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502084.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1506243 is about 1227.2909190571. The cubic root of 1506243 is about 114.6300144635.

The spelling of 1506243 in words is "one million, five hundred six thousand, two hundred forty-three".