139105340 has 24 divisors (see below), whose sum is σ = 318678192. Its totient is φ = 50583680.

The previous prime is 139105331. The next prime is 139105349. The reversal of 139105340 is 43501931.

It is an interprime number because it is at equal distance from previous prime (139105331) and next prime (139105349).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139105349) 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, 315929 + ... + 316368.

It is an arithmetic number, because the mean of its divisors is an integer number (13278258).

Almost surely, 2^139105340 is an apocalyptic number.

139105340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139105340 is an abundant number, since it is smaller than the sum of its proper divisors (179572852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139105340 is a wasteful number, since it uses less digits than its factorization.

139105340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632317 (or 632315 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 139105340 is about 11794.2926875672. The cubic root of 139105340 is about 518.1409702638.

The spelling of 139105340 in words is "one hundred thirty-nine million, one hundred five thousand, three hundred forty".