138473003 has 2 divisors, whose sum is σ = 138473004. Its totient is φ = 138473002.

The previous prime is 138472927. The next prime is 138473009. The reversal of 138473003 is 300374831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138473003 - 2¹² = 138468907 is a prime.

It is not a weakly prime, because it can be changed into another prime (138473009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69236501 + 69236502.

It is an arithmetic number, because the mean of its divisors is an integer number (69236502).

Almost surely, 2^138473003 is an apocalyptic number.

138473003 is a deficient number, since it is larger than the sum of its proper divisors (1).

138473003 is an equidigital number, since it uses as much as digits as its factorization.

138473003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 138473003 is about 11767.4552474186. The cubic root of 138473003 is about 517.3546658715.

The spelling of 138473003 in words is "one hundred thirty-eight million, four hundred seventy-three thousand, three".