137780085 has 8 divisors (see below), whose sum is σ = 220448160. Its totient is φ = 73482704.

The previous prime is 137780081. The next prime is 137780107. The reversal of 137780085 is 580087731.

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

It is a cyclic number.

It is not a de Polignac number, because 137780085 - 2² = 137780081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137780081) 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, 4592655 + ... + 4592684.

It is an arithmetic number, because the mean of its divisors is an integer number (27556020).

Almost surely, 2^137780085 is an apocalyptic number.

137780085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

137780085 is a deficient number, since it is larger than the sum of its proper divisors (82668075).

137780085 is an equidigital number, since it uses as much as digits as its factorization.

137780085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9185347.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 137780085 is about 11737.9761884236. The cubic root of 137780085 is about 516.4902760107.

The spelling of 137780085 in words is "one hundred thirty-seven million, seven hundred eighty thousand, eighty-five".