116540137 has 4 divisors (see below), whose sum is σ = 133188736. Its totient is φ = 99891540.

The previous prime is 116540113. The next prime is 116540141. The reversal of 116540137 is 731045611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 731045611 = 17 ⋅43002683.

It is not a de Polignac number, because 116540137 - 2¹¹ = 116538089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116540147) 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, 8324289 + ... + 8324302.

It is an arithmetic number, because the mean of its divisors is an integer number (33297184).

Almost surely, 2^116540137 is an apocalyptic number.

It is an amenable number.

116540137 is a deficient number, since it is larger than the sum of its proper divisors (16648599).

116540137 is an equidigital number, since it uses as much as digits as its factorization.

116540137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16648598.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 116540137 is about 10795.3757229658. The cubic root of 116540137 is about 488.4556919318.

Adding to 116540137 its reverse (731045611), we get a palindrome (847585748).

The spelling of 116540137 in words is "one hundred sixteen million, five hundred forty thousand, one hundred thirty-seven".