139380001 has 4 divisors (see below), whose sum is σ = 139405104. Its totient is φ = 139354900.

The previous prime is 139379987. The next prime is 139380011. The reversal of 139380001 is 100083931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100083931 = 499 ⋅200569.

It is a cyclic number.

It is not a de Polignac number, because 139380001 - 2⁵ = 139379969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139380011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115 + ... + 16696.

It is an arithmetic number, because the mean of its divisors is an integer number (34851276).

Almost surely, 2^139380001 is an apocalyptic number.

It is an amenable number.

139380001 is a deficient number, since it is larger than the sum of its proper divisors (25103).

139380001 is an equidigital number, since it uses as much as digits as its factorization.

139380001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25102.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 139380001 is about 11805.9307553450. The cubic root of 139380001 is about 518.4817660826.

The spelling of 139380001 in words is "one hundred thirty-nine million, three hundred eighty thousand, one".