137305394 has 8 divisors (see below), whose sum is σ = 206437248. Its totient is φ = 68492980.

The previous prime is 137305391. The next prime is 137305439. The reversal of 137305394 is 493503731.

137305394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (137305391) 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, 78782 + ... + 80505.

It is an arithmetic number, because the mean of its divisors is an integer number (25804656).

Almost surely, 2^137305394 is an apocalyptic number.

137305394 is a deficient number, since it is larger than the sum of its proper divisors (69131854).

137305394 is a wasteful number, since it uses less digits than its factorization.

137305394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159720.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 137305394 is about 11717.7384336740. The cubic root of 137305394 is about 515.8964422712.

The spelling of 137305394 in words is "one hundred thirty-seven million, three hundred five thousand, three hundred ninety-four".