7138720003 has 2 divisors, whose sum is σ = 7138720004. Its totient is φ = 7138720002.

The previous prime is 7138719989. The next prime is 7138720027. The reversal of 7138720003 is 3000278317.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7138720003 - 2⁵ = 7138719971 is a prime.

It is a super-2 number, since 2×7138720003² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7138720093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569360001 + 3569360002.

It is an arithmetic number, because the mean of its divisors is an integer number (3569360002).

Almost surely, 2^7138720003 is an apocalyptic number.

7138720003 is a deficient number, since it is larger than the sum of its proper divisors (1).

7138720003 is an equidigital number, since it uses as much as digits as its factorization.

7138720003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 7138720003 is about 84490.9462782848. The cubic root of 7138720003 is about 1925.4848952649.

The spelling of 7138720003 in words is "seven billion, one hundred thirty-eight million, seven hundred twenty thousand, three".