40001304139 has 2 divisors, whose sum is σ = 40001304140. Its totient is φ = 40001304138.

The previous prime is 40001304131. The next prime is 40001304169. The reversal of 40001304139 is 93140310004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40001304139 - 2³ = 40001304131 is a prime.

It is not a weakly prime, because it can be changed into another prime (40001304131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20000652069 + 20000652070.

It is an arithmetic number, because the mean of its divisors is an integer number (20000652070).

Almost surely, 2^40001304139 is an apocalyptic number.

40001304139 is a deficient number, since it is larger than the sum of its proper divisors (1).

40001304139 is an equidigital number, since it uses as much as digits as its factorization.

40001304139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 40001304139 in words is "forty billion, one million, three hundred four thousand, one hundred thirty-nine".