137875785 has 16 divisors (see below), whose sum is σ = 220752960. Its totient is φ = 73483200.

The previous prime is 137875781. The next prime is 137875811. The reversal of 137875785 is 587578731.

It is not a de Polignac number, because 137875785 - 2² = 137875781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137875781) by changing a digit.

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, 32010 + ... + 36060.

It is an arithmetic number, because the mean of its divisors is an integer number (13797060).

Almost surely, 2^137875785 is an apocalyptic number.

137875785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

137875785 is a deficient number, since it is larger than the sum of its proper divisors (82877175).

137875785 is a wasteful number, since it uses less digits than its factorization.

137875785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6328.

The product of its digits is 1646400, while the sum is 51.

The square root of 137875785 is about 11742.0519927311. The cubic root of 137875785 is about 516.6098304921.

The spelling of 137875785 in words is "one hundred thirty-seven million, eight hundred seventy-five thousand, seven hundred eighty-five".