137083994 has 4 divisors (see below), whose sum is σ = 205625994. Its totient is φ = 68541996.

The previous prime is 137083987. The next prime is 137083997. The reversal of 137083994 is 499380731.

It is a happy number.

137083994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499380731 = 719 ⋅694549.

It can be written as a sum of positive squares in only one way, i.e., 118048225 + 19035769 = 10865^2 + 4363^2 .

It is not an unprimeable number, because it can be changed into a prime (137083997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34270997 + ... + 34271000.

Almost surely, 2^137083994 is an apocalyptic number.

137083994 is a deficient number, since it is larger than the sum of its proper divisors (68542000).

137083994 is an equidigital number, since it uses as much as digits as its factorization.

137083994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68541999.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 137083994 is about 11708.2874067901. The cubic root of 137083994 is about 515.6190049575.

The spelling of 137083994 in words is "one hundred thirty-seven million, eighty-three thousand, nine hundred ninety-four".