139510009073 has 4 divisors (see below), whose sum is σ = 139515522048. Its totient is φ = 139504496100.

The previous prime is 139510009049. The next prime is 139510009097. The reversal of 139510009073 is 370900015931.

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: 370900015931 = 5531 ⋅67058401.

It is an interprime number because it is at equal distance from previous prime (139510009049) and next prime (139510009097).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139510009073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139510009003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2718353 + ... + 2769198.

It is an arithmetic number, because the mean of its divisors is an integer number (34878880512).

Almost surely, 2^139510009073 is an apocalyptic number.

It is an amenable number.

139510009073 is a deficient number, since it is larger than the sum of its proper divisors (5512975).

139510009073 is an equidigital number, since it uses as much as digits as its factorization.

139510009073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5512974.

The product of its (nonzero) digits is 25515, while the sum is 38.

The spelling of 139510009073 in words is "one hundred thirty-nine billion, five hundred ten million, nine thousand, seventy-three".