279342155101 has 2 divisors, whose sum is σ = 279342155102. Its totient is φ = 279342155100.

The previous prime is 279342155077. The next prime is 279342155107. The reversal of 279342155101 is 101551243972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156440025625 + 122902129476 = 395525^2 + 350574^2 .

It is a cyclic number.

It is not a de Polignac number, because 279342155101 - 2²⁷ = 279207937373 is a prime.

It is a super-2 number, since 2×279342155101² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (279342155107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139671077550 + 139671077551.

It is an arithmetic number, because the mean of its divisors is an integer number (139671077551).

Almost surely, 2^279342155101 is an apocalyptic number.

It is an amenable number.

279342155101 is a deficient number, since it is larger than the sum of its proper divisors (1).

279342155101 is an equidigital number, since it uses as much as digits as its factorization.

279342155101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 279342155101 in words is "two hundred seventy-nine billion, three hundred forty-two million, one hundred fifty-five thousand, one hundred one".