137320285 has 8 divisors (see below), whose sum is σ = 168616800. Its totient is φ = 107301264.

The previous prime is 137320273. The next prime is 137320289. The reversal of 137320285 is 582023731.

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 137320285 - 2²⁷ = 3102557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137320289) 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, 319135 + ... + 319564.

It is an arithmetic number, because the mean of its divisors is an integer number (21077100).

Almost surely, 2^137320285 is an apocalyptic number.

It is an amenable number.

137320285 is a deficient number, since it is larger than the sum of its proper divisors (31296515).

137320285 is an equidigital number, since it uses as much as digits as its factorization.

137320285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638747.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 137320285 is about 11718.3738206289. The cubic root of 137320285 is about 515.9150915415.

The spelling of 137320285 in words is "one hundred thirty-seven million, three hundred twenty thousand, two hundred eighty-five".