139110961 has 8 divisors (see below), whose sum is σ = 154023264. Its totient is φ = 124576320.

The previous prime is 139110953. The next prime is 139110971. The reversal of 139110961 is 169011931.

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

It is not a de Polignac number, because 139110961 - 2³ = 139110953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139110911) 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 7 ways as a sum of consecutive naturals, for example, 93640 + ... + 95113.

It is an arithmetic number, because the mean of its divisors is an integer number (19252908).

Almost surely, 2^139110961 is an apocalyptic number.

139110961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

139110961 is a deficient number, since it is larger than the sum of its proper divisors (14912303).

139110961 is a wasteful number, since it uses less digits than its factorization.

139110961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188831.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 139110961 is about 11794.5309783815. The cubic root of 139110961 is about 518.1479492222.

The spelling of 139110961 in words is "one hundred thirty-nine million, one hundred ten thousand, nine hundred sixty-one".