155105473 has 2 divisors, whose sum is σ = 155105474. Its totient is φ = 155105472.

The previous prime is 155105471. The next prime is 155105497. The reversal of 155105473 is 374501551.

155105473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131515024 + 23590449 = 11468^2 + 4857^2 .

It is a cyclic number.

It is not a de Polignac number, because 155105473 - 2¹ = 155105471 is a prime.

Together with 155105471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (155105471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77552736 + 77552737.

It is an arithmetic number, because the mean of its divisors is an integer number (77552737).

Almost surely, 2^155105473 is an apocalyptic number.

It is an amenable number.

155105473 is a deficient number, since it is larger than the sum of its proper divisors (1).

155105473 is an equidigital number, since it uses as much as digits as its factorization.

155105473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 155105473 is about 12454.1347752463. The cubic root of 155105473 is about 537.2903503992.

The spelling of 155105473 in words is "one hundred fifty-five million, one hundred five thousand, four hundred seventy-three".