139534946 has 16 divisors (see below), whose sum is σ = 222271776. Its totient is φ = 65468736.

The previous prime is 139534939. The next prime is 139534973. The reversal of 139534946 is 649435931.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 139534897 and 139534906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5885 + ... + 17711.

It is an arithmetic number, because the mean of its divisors is an integer number (13891986).

Almost surely, 2^139534946 is an apocalyptic number.

139534946 is a deficient number, since it is larger than the sum of its proper divisors (82736830).

139534946 is a wasteful number, since it uses less digits than its factorization.

139534946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12193.

The product of its digits is 349920, while the sum is 44.

The square root of 139534946 is about 11812.4911005257. The cubic root of 139534946 is about 518.6738223457.

The spelling of 139534946 in words is "one hundred thirty-nine million, five hundred thirty-four thousand, nine hundred forty-six".