137480138 has 4 divisors (see below), whose sum is σ = 206220210. Its totient is φ = 68740068.

The previous prime is 137480129. The next prime is 137480141. The reversal of 137480138 is 831084731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 99940009 + 37540129 = 9997^2 + 6127^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 137480098 and 137480107.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 34370033 + ... + 34370036.

Almost surely, 2^137480138 is an apocalyptic number.

137480138 is a deficient number, since it is larger than the sum of its proper divisors (68740072).

137480138 is an equidigital number, since it uses as much as digits as its factorization.

137480138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68740071.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 137480138 is about 11725.1924504462. The cubic root of 137480138 is about 516.1152042313.

The spelling of 137480138 in words is "one hundred thirty-seven million, four hundred eighty thousand, one hundred thirty-eight".