555240149 has 2 divisors, whose sum is σ = 555240150. Its totient is φ = 555240148.

The previous prime is 555240121. The next prime is 555240181. The reversal of 555240149 is 941042555.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368371249 + 186868900 = 19193^2 + 13670^2 .

It is a cyclic number.

It is not a de Polignac number, because 555240149 - 2²⁴ = 538462933 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555240109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277620074 + 277620075.

It is an arithmetic number, because the mean of its divisors is an integer number (277620075).

Almost surely, 2^555240149 is an apocalyptic number.

It is an amenable number.

555240149 is a deficient number, since it is larger than the sum of its proper divisors (1).

555240149 is an equidigital number, since it uses as much as digits as its factorization.

555240149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 555240149 is about 23563.5343062114. The cubic root of 555240149 is about 821.9150901020.

The spelling of 555240149 in words is "five hundred fifty-five million, two hundred forty thousand, one hundred forty-nine".