139726966 has 8 divisors (see below), whose sum is σ = 213026544. Its totient is φ = 68718120.

The previous prime is 139726957. The next prime is 139726967. The reversal of 139726966 is 669627931.

139726966 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139726967) 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, 572530 + ... + 572773.

It is an arithmetic number, because the mean of its divisors is an integer number (26628318).

Almost surely, 2^139726966 is an apocalyptic number.

139726966 is a deficient number, since it is larger than the sum of its proper divisors (73299578).

139726966 is a wasteful number, since it uses less digits than its factorization.

139726966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145366.

The product of its digits is 734832, while the sum is 49.

The square root of 139726966 is about 11820.6161429936. The cubic root of 139726966 is about 518.9116363584.

The spelling of 139726966 in words is "one hundred thirty-nine million, seven hundred twenty-six thousand, nine hundred sixty-six".