254136115099 has 2 divisors, whose sum is σ = 254136115100. Its totient is φ = 254136115098.

The previous prime is 254136115031. The next prime is 254136115111. The reversal of 254136115099 is 990511631452.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254136115099 - 2¹⁹ = 254135590811 is a prime.

It is a super-2 number, since 2×254136115099² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (254136115799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127068057549 + 127068057550.

It is an arithmetic number, because the mean of its divisors is an integer number (127068057550).

Almost surely, 2^254136115099 is an apocalyptic number.

254136115099 is a deficient number, since it is larger than the sum of its proper divisors (1).

254136115099 is an equidigital number, since it uses as much as digits as its factorization.

254136115099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 254136115099 in words is "two hundred fifty-four billion, one hundred thirty-six million, one hundred fifteen thousand, ninety-nine".