135939740 has 12 divisors (see below), whose sum is σ = 285473496. Its totient is φ = 54375888.

The previous prime is 135939731. The next prime is 135939751. The reversal of 135939740 is 47939531.

It is a super-2 number, since 2×135939740² = 36959225822535200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3398474 + ... + 3398513.

It is an arithmetic number, because the mean of its divisors is an integer number (23789458).

Almost surely, 2^135939740 is an apocalyptic number.

135939740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135939740 is an abundant number, since it is smaller than the sum of its proper divisors (149533756).

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

135939740 is a wasteful number, since it uses less digits than its factorization.

135939740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6796996 (or 6796994 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 135939740 is about 11659.3198772484. The cubic root of 135939740 is about 514.1803532693.

The spelling of 135939740 in words is "one hundred thirty-five million, nine hundred thirty-nine thousand, seven hundred forty".