555142309 has 2 divisors, whose sum is σ = 555142310. Its totient is φ = 555142308.

The previous prime is 555142307. The next prime is 555142363. The reversal of 555142309 is 903241555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 486202500 + 68939809 = 22050^2 + 8303^2 .

It is a cyclic number.

It is not a de Polignac number, because 555142309 - 2¹ = 555142307 is a prime.

Together with 555142307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555142307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277571154 + 277571155.

It is an arithmetic number, because the mean of its divisors is an integer number (277571155).

Almost surely, 2^555142309 is an apocalyptic number.

It is an amenable number.

555142309 is a deficient number, since it is larger than the sum of its proper divisors (1).

555142309 is an equidigital number, since it uses as much as digits as its factorization.

555142309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 555142309 is about 23561.4581255066. The cubic root of 555142309 is about 821.8668101542.

The spelling of 555142309 in words is "five hundred fifty-five million, one hundred forty-two thousand, three hundred nine".