137113378 has 4 divisors (see below), whose sum is σ = 205670070. Its totient is φ = 68556688.

The previous prime is 137113349. The next prime is 137113397. The reversal of 137113378 is 873311731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873311731 = 18149 ⋅48119.

It can be written as a sum of positive squares in only one way, i.e., 83046769 + 54066609 = 9113^2 + 7353^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34278343 + ... + 34278346.

Almost surely, 2^137113378 is an apocalyptic number.

137113378 is a deficient number, since it is larger than the sum of its proper divisors (68556692).

137113378 is an equidigital number, since it uses as much as digits as its factorization.

137113378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68556691.

The product of its digits is 10584, while the sum is 34.

The square root of 137113378 is about 11709.5421772160. The cubic root of 137113378 is about 515.6558433610.

The spelling of 137113378 in words is "one hundred thirty-seven million, one hundred thirteen thousand, three hundred seventy-eight".