137847109 has 8 divisors (see below), whose sum is σ = 145268480. Its totient is φ = 130442400.

The previous prime is 137847107. The next prime is 137847113. The reversal of 137847109 is 901748731.

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 137847109 - 2¹ = 137847107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137847107) 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, 15169 + ... + 22489.

It is an arithmetic number, because the mean of its divisors is an integer number (18158560).

Almost surely, 2^137847109 is an apocalyptic number.

137847109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

137847109 is a deficient number, since it is larger than the sum of its proper divisors (7421371).

137847109 is an equidigital number, since it uses as much as digits as its factorization.

137847109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 137847109 is about 11740.8308479426. The cubic root of 137847109 is about 516.5740124291.

The spelling of 137847109 in words is "one hundred thirty-seven million, eight hundred forty-seven thousand, one hundred nine".