54123513137 has 2 divisors, whose sum is σ = 54123513138. Its totient is φ = 54123513136.

The previous prime is 54123513113. The next prime is 54123513193. The reversal of 54123513137 is 73131532145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53252023696 + 871489441 = 230764^2 + 29521^2 .

It is a cyclic number.

It is not a de Polignac number, because 54123513137 - 2²² = 54119318833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54123513097 and 54123513106.

It is not a weakly prime, because it can be changed into another prime (54123513637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27061756568 + 27061756569.

It is an arithmetic number, because the mean of its divisors is an integer number (27061756569).

Almost surely, 2^54123513137 is an apocalyptic number.

It is an amenable number.

54123513137 is a deficient number, since it is larger than the sum of its proper divisors (1).

54123513137 is an equidigital number, since it uses as much as digits as its factorization.

54123513137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 35.

The spelling of 54123513137 in words is "fifty-four billion, one hundred twenty-three million, five hundred thirteen thousand, one hundred thirty-seven".