2003531239 has 2 divisors, whose sum is σ = 2003531240. Its totient is φ = 2003531238.

The previous prime is 2003531203. The next prime is 2003531261. The reversal of 2003531239 is 9321353002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2003531239 - 2¹³ = 2003523047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003511239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001765619 + 1001765620.

It is an arithmetic number, because the mean of its divisors is an integer number (1001765620).

Almost surely, 2^2003531239 is an apocalyptic number.

2003531239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003531239 is an equidigital number, since it uses as much as digits as its factorization.

2003531239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 2003531239 is about 44760.8225907433. The cubic root of 2003531239 is about 1260.6621276368.

The spelling of 2003531239 in words is "two billion, three million, five hundred thirty-one thousand, two hundred thirty-nine".