139740611 has 4 divisors (see below), whose sum is σ = 147095400. Its totient is φ = 132385824.

The previous prime is 139740607. The next prime is 139740613. The reversal of 139740611 is 116047931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139740611 - 2² = 139740607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139740613) 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, 3677366 + ... + 3677403.

It is an arithmetic number, because the mean of its divisors is an integer number (36773850).

Almost surely, 2^139740611 is an apocalyptic number.

139740611 is a deficient number, since it is larger than the sum of its proper divisors (7354789).

139740611 is an equidigital number, since it uses as much as digits as its factorization.

139740611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7354788.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 139740611 is about 11821.1932984788. The cubic root of 139740611 is about 518.9285272016.

The spelling of 139740611 in words is "one hundred thirty-nine million, seven hundred forty thousand, six hundred eleven".