137754665 has 4 divisors (see below), whose sum is σ = 165305604. Its totient is φ = 110203728.

The previous prime is 137754619. The next prime is 137754667. The reversal of 137754665 is 566457731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15784729 + 121969936 = 3973^2 + 11044^2 .

It is a cyclic number.

It is not a de Polignac number, because 137754665 - 2⁶ = 137754601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137754667) 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 3 ways as a sum of consecutive naturals, for example, 13775462 + ... + 13775471.

It is an arithmetic number, because the mean of its divisors is an integer number (41326401).

Almost surely, 2^137754665 is an apocalyptic number.

It is an amenable number.

137754665 is a deficient number, since it is larger than the sum of its proper divisors (27550939).

137754665 is an equidigital number, since it uses as much as digits as its factorization.

137754665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27550938.

The product of its digits is 529200, while the sum is 44.

The square root of 137754665 is about 11736.8933283046. The cubic root of 137754665 is about 516.4585104370.

The spelling of 137754665 in words is "one hundred thirty-seven million, seven hundred fifty-four thousand, six hundred sixty-five".