139607746 has 8 divisors (see below), whose sum is σ = 218516544. Its totient is φ = 66768900.

The previous prime is 139607729. The next prime is 139607753. The reversal of 139607746 is 647706931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1517430 + ... + 1517521.

It is an arithmetic number, because the mean of its divisors is an integer number (27314568).

Almost surely, 2^139607746 is an apocalyptic number.

139607746 is a deficient number, since it is larger than the sum of its proper divisors (78908798).

139607746 is a wasteful number, since it uses less digits than its factorization.

139607746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034976.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 139607746 is about 11815.5721825056. The cubic root of 139607746 is about 518.7640097634.

The spelling of 139607746 in words is "one hundred thirty-nine million, six hundred seven thousand, seven hundred forty-six".