1503139 has 4 divisors (see below), whose sum is σ = 1639800. Its totient is φ = 1366480.

The previous prime is 1503137. The next prime is 1503149. The reversal of 1503139 is 9313051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1503139 - 2¹ = 1503137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1503137) 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, 68314 + ... + 68335.

It is an arithmetic number, because the mean of its divisors is an integer number (409950).

2^1503139 is an apocalyptic number.

1503139 is a deficient number, since it is larger than the sum of its proper divisors (136661).

1503139 is a wasteful number, since it uses less digits than its factorization.

1503139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136660.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 1503139 is about 1226.0256930424. The cubic root of 1503139 is about 114.5512187980.

The spelling of 1503139 in words is "one million, five hundred three thousand, one hundred thirty-nine".