155241071 has 2 divisors, whose sum is σ = 155241072. Its totient is φ = 155241070.

The previous prime is 155241067. The next prime is 155241091. The reversal of 155241071 is 170142551.

It is a weak prime.

It is an emirp because it is prime and its reverse (170142551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155241071 - 2² = 155241067 is a prime.

It is equal to p_8722322 and since 155241071 and 8722322 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155241071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155241091) 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, 77620535 + 77620536.

It is an arithmetic number, because the mean of its divisors is an integer number (77620536).

Almost surely, 2^155241071 is an apocalyptic number.

155241071 is a deficient number, since it is larger than the sum of its proper divisors (1).

155241071 is an equidigital number, since it uses as much as digits as its factorization.

155241071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 155241071 is about 12459.5774807977. The cubic root of 155241071 is about 537.4468767401.

The spelling of 155241071 in words is "one hundred fifty-five million, two hundred forty-one thousand, seventy-one".