155144263 has 2 divisors, whose sum is σ = 155144264. Its totient is φ = 155144262.

The previous prime is 155144251. The next prime is 155144267. The reversal of 155144263 is 362441551.

It is a happy number.

155144263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (362441551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155144263 - 2¹³ = 155136071 is a prime.

It is equal to p_8717233 and since 155144263 and 8717233 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 (155144267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77572131 + 77572132.

It is an arithmetic number, because the mean of its divisors is an integer number (77572132).

Almost surely, 2^155144263 is an apocalyptic number.

155144263 is a deficient number, since it is larger than the sum of its proper divisors (1).

155144263 is an equidigital number, since it uses as much as digits as its factorization.

155144263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 31.

The square root of 155144263 is about 12455.6919920171. The cubic root of 155144263 is about 537.3351366021.

The spelling of 155144263 in words is "one hundred fifty-five million, one hundred forty-four thousand, two hundred sixty-three".