137481193 has 4 divisors (see below), whose sum is σ = 145568340. Its totient is φ = 129394048.

The previous prime is 137481173. The next prime is 137481203. The reversal of 137481193 is 391184731.

137481193 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.

It can be written as a sum of positive squares in 2 ways, for example, as 101445184 + 36036009 = 10072^2 + 6003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137481193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137481103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4043548 + ... + 4043581.

It is an arithmetic number, because the mean of its divisors is an integer number (36392085).

Almost surely, 2^137481193 is an apocalyptic number.

It is an amenable number.

137481193 is a deficient number, since it is larger than the sum of its proper divisors (8087147).

137481193 is an equidigital number, since it uses as much as digits as its factorization.

137481193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8087146.

The product of its digits is 18144, while the sum is 37.

The square root of 137481193 is about 11725.2374389605. The cubic root of 137481193 is about 516.1165244223.

It can be divided in two parts, 13748 and 1193, that added together give a palindrome (14941).

The spelling of 137481193 in words is "one hundred thirty-seven million, four hundred eighty-one thousand, one hundred ninety-three".