403012139 has 2 divisors, whose sum is σ = 403012140. Its totient is φ = 403012138.

The previous prime is 403012087. The next prime is 403012157. The reversal of 403012139 is 931210304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 403012139 - 2¹² = 403008043 is a prime.

It is not a weakly prime, because it can be changed into another prime (403012189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201506069 + 201506070.

It is an arithmetic number, because the mean of its divisors is an integer number (201506070).

Almost surely, 2^403012139 is an apocalyptic number.

403012139 is a deficient number, since it is larger than the sum of its proper divisors (1).

403012139 is an equidigital number, since it uses as much as digits as its factorization.

403012139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 403012139 is about 20075.1622409384. The cubic root of 403012139 is about 738.6511458299.

The spelling of 403012139 in words is "four hundred three million, twelve thousand, one hundred thirty-nine".