155054311 has 2 divisors, whose sum is σ = 155054312. Its totient is φ = 155054310.

The previous prime is 155054227. The next prime is 155054359. The reversal of 155054311 is 113450551.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (113450551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155054311 - 2¹¹ = 155052263 is a prime.

It is equal to p_8712421 and since 155054311 and 8712421 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155054111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77527155 + 77527156.

It is an arithmetic number, because the mean of its divisors is an integer number (77527156).

Almost surely, 2^155054311 is an apocalyptic number.

155054311 is a deficient number, since it is larger than the sum of its proper divisors (1).

155054311 is an equidigital number, since it uses as much as digits as its factorization.

155054311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 155054311 is about 12452.0805892028. The cubic root of 155054311 is about 537.2312682977.

The spelling of 155054311 in words is "one hundred fifty-five million, fifty-four thousand, three hundred eleven".