139474941 has 8 divisors (see below), whose sum is σ = 190992864. Its totient is φ = 90470160.

The previous prime is 139474939. The next prime is 139474957. The reversal of 139474941 is 149474931.

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

It is not a de Polignac number, because 139474941 - 2¹ = 139474939 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 139474893 and 139474902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139474931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628155 + ... + 628376.

It is an arithmetic number, because the mean of its divisors is an integer number (23874108).

Almost surely, 2^139474941 is an apocalyptic number.

It is an amenable number.

139474941 is a deficient number, since it is larger than the sum of its proper divisors (51517923).

139474941 is a wasteful number, since it uses less digits than its factorization.

139474941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256571.

The product of its digits is 108864, while the sum is 42.

The square root of 139474941 is about 11809.9509313121. The cubic root of 139474941 is about 518.5994622756.

The spelling of 139474941 in words is "one hundred thirty-nine million, four hundred seventy-four thousand, nine hundred forty-one".