137943394 has 16 divisors (see below), whose sum is σ = 209353248. Its totient is φ = 68162752.

The previous prime is 137943383. The next prime is 137943413. The reversal of 137943394 is 493349731.

137943394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 137943394.

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, 104889 + ... + 106195.

It is an arithmetic number, because the mean of its divisors is an integer number (13084578).

Almost surely, 2^137943394 is an apocalyptic number.

137943394 is a deficient number, since it is larger than the sum of its proper divisors (71409854).

137943394 is a wasteful number, since it uses less digits than its factorization.

137943394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889.

The product of its digits is 244944, while the sum is 43.

The square root of 137943394 is about 11744.9305659931. The cubic root of 137943394 is about 516.6942585796.

The spelling of 137943394 in words is "one hundred thirty-seven million, nine hundred forty-three thousand, three hundred ninety-four".