385138603 has 2 divisors, whose sum is σ = 385138604. Its totient is φ = 385138602.

The previous prime is 385138591. The next prime is 385138613. The reversal of 385138603 is 306831583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 385138603 - 2⁵ = 385138571 is a prime.

It is not a weakly prime, because it can be changed into another prime (385138613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192569301 + 192569302.

It is an arithmetic number, because the mean of its divisors is an integer number (192569302).

Almost surely, 2^385138603 is an apocalyptic number.

385138603 is a deficient number, since it is larger than the sum of its proper divisors (1).

385138603 is an equidigital number, since it uses as much as digits as its factorization.

385138603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 385138603 is about 19624.9484840088. The cubic root of 385138603 is about 727.5659237308.

The spelling of 385138603 in words is "three hundred eighty-five million, one hundred thirty-eight thousand, six hundred three".