254120513 has 2 divisors, whose sum is σ = 254120514. Its totient is φ = 254120512.

The previous prime is 254120509. The next prime is 254120527. The reversal of 254120513 is 315021452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142754704 + 111365809 = 11948^2 + 10553^2 .

It is a cyclic number.

It is not a de Polignac number, because 254120513 - 2² = 254120509 is a prime.

It is not a weakly prime, because it can be changed into another prime (254120563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127060256 + 127060257.

It is an arithmetic number, because the mean of its divisors is an integer number (127060257).

Almost surely, 2^254120513 is an apocalyptic number.

It is an amenable number.

254120513 is a deficient number, since it is larger than the sum of its proper divisors (1).

254120513 is an equidigital number, since it uses as much as digits as its factorization.

254120513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 254120513 is about 15941.1578312242. The cubic root of 254120513 is about 633.4026963427.

Adding to 254120513 its reverse (315021452), we get a palindrome (569141965).

The spelling of 254120513 in words is "two hundred fifty-four million, one hundred twenty thousand, five hundred thirteen".