137800565 has 8 divisors (see below), whose sum is σ = 188983680. Its totient is φ = 94491792.

The previous prime is 137800517. The next prime is 137800571. The reversal of 137800565 is 565008731.

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 137800565 - 2¹⁸ = 137538421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 3937159 = 137800565 / (1 + 3 + 7 + 8 + 0 + 0 + 5 + 6 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1968545 + ... + 1968614.

It is an arithmetic number, because the mean of its divisors is an integer number (23622960).

Almost surely, 2^137800565 is an apocalyptic number.

It is an amenable number.

137800565 is a deficient number, since it is larger than the sum of its proper divisors (51183115).

137800565 is an equidigital number, since it uses as much as digits as its factorization.

137800565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937171.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 137800565 is about 11738.8485380807. The cubic root of 137800565 is about 516.5158655744.

The spelling of 137800565 in words is "one hundred thirty-seven million, eight hundred thousand, five hundred sixty-five".