139747935 has 16 divisors (see below), whose sum is σ = 224332416. Its totient is φ = 74287008.

The previous prime is 139747913. The next prime is 139747957. The reversal of 139747935 is 539747931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (139747913) and next prime (139747957).

It is not a de Polignac number, because 139747935 - 2⁵ = 139747903 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10569 + ... + 19778.

It is an arithmetic number, because the mean of its divisors is an integer number (14020776).

Almost surely, 2^139747935 is an apocalyptic number.

139747935 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139747935 is a deficient number, since it is larger than the sum of its proper divisors (84584481).

139747935 is a wasteful number, since it uses less digits than its factorization.

139747935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30662.

The product of its digits is 714420, while the sum is 48.

The square root of 139747935 is about 11821.5030770203. The cubic root of 139747935 is about 518.9375929654.

The spelling of 139747935 in words is "one hundred thirty-nine million, seven hundred forty-seven thousand, nine hundred thirty-five".