155123167 has 2 divisors, whose sum is σ = 155123168. Its totient is φ = 155123166.

The previous prime is 155123149. The next prime is 155123207. The reversal of 155123167 is 761321551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155123167 - 2¹¹ = 155121119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155163167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77561583 + 77561584.

It is an arithmetic number, because the mean of its divisors is an integer number (77561584).

Almost surely, 2^155123167 is an apocalyptic number.

155123167 is a deficient number, since it is larger than the sum of its proper divisors (1).

155123167 is an equidigital number, since it uses as much as digits as its factorization.

155123167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 31.

The square root of 155123167 is about 12454.8451214778. The cubic root of 155123167 is about 537.3107804842.

The spelling of 155123167 in words is "one hundred fifty-five million, one hundred twenty-three thousand, one hundred sixty-seven".