518288149 has 2 divisors, whose sum is σ = 518288150. Its totient is φ = 518288148.

The previous prime is 518288107. The next prime is 518288153. The reversal of 518288149 is 941882815.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328261924 + 190026225 = 18118^2 + 13785^2 .

It is a cyclic number.

It is not a de Polignac number, because 518288149 - 2¹¹ = 518286101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 518288099 and 518288108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (518288179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259144074 + 259144075.

It is an arithmetic number, because the mean of its divisors is an integer number (259144075).

Almost surely, 2^518288149 is an apocalyptic number.

It is an amenable number.

518288149 is a deficient number, since it is larger than the sum of its proper divisors (1).

518288149 is an equidigital number, since it uses as much as digits as its factorization.

518288149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 46.

The square root of 518288149 is about 22765.9427434930. The cubic root of 518288149 is about 803.2617606767.

The spelling of 518288149 in words is "five hundred eighteen million, two hundred eighty-eight thousand, one hundred forty-nine".