118045453137 has 4 divisors (see below), whose sum is σ = 157393937520. Its totient is φ = 78696968756.

The previous prime is 118045453109. The next prime is 118045453147. The reversal of 118045453137 is 731354540811.

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: 731354540811 = 3 ⋅243784846937.

It is a cyclic number.

It is not a de Polignac number, because 118045453137 - 2¹⁶ = 118045387601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118045453147) 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, 19674242187 + ... + 19674242192.

It is an arithmetic number, because the mean of its divisors is an integer number (39348484380).

Almost surely, 2^118045453137 is an apocalyptic number.

It is an amenable number.

118045453137 is a deficient number, since it is larger than the sum of its proper divisors (39348484383).

118045453137 is an equidigital number, since it uses as much as digits as its factorization.

118045453137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39348484382.

The product of its (nonzero) digits is 201600, while the sum is 42.

Adding to 118045453137 its reverse (731354540811), we get a palindrome (849399993948).

The spelling of 118045453137 in words is "one hundred eighteen billion, forty-five million, four hundred fifty-three thousand, one hundred thirty-seven".