137640543 has 8 divisors (see below), whose sum is σ = 183936768. Its totient is φ = 91552344.

The previous prime is 137640497. The next prime is 137640563. The reversal of 137640543 is 345046731.

137640543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 137640543 - 2⁶ = 137640479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137640563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50455 + ... + 53112.

It is an arithmetic number, because the mean of its divisors is an integer number (22992096).

Almost surely, 2^137640543 is an apocalyptic number.

137640543 is a deficient number, since it is larger than the sum of its proper divisors (46296225).

137640543 is a wasteful number, since it uses less digits than its factorization.

137640543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104013.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 137640543 is about 11732.0306426467. The cubic root of 137640543 is about 516.3158520823.

The spelling of 137640543 in words is "one hundred thirty-seven million, six hundred forty thousand, five hundred forty-three".