155034923 has 2 divisors, whose sum is σ = 155034924. Its totient is φ = 155034922.

The previous prime is 155034907. The next prime is 155034941. The reversal of 155034923 is 329430551.

It is a weak prime.

It is an emirp because it is prime and its reverse (329430551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155034923 - 2⁴ = 155034907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155034923.

It is not a weakly prime, because it can be changed into another prime (155034323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77517461 + 77517462.

It is an arithmetic number, because the mean of its divisors is an integer number (77517462).

Almost surely, 2^155034923 is an apocalyptic number.

155034923 is a deficient number, since it is larger than the sum of its proper divisors (1).

155034923 is an equidigital number, since it uses as much as digits as its factorization.

155034923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 155034923 is about 12451.3020604273. The cubic root of 155034923 is about 537.2088755548.

The spelling of 155034923 in words is "one hundred fifty-five million, thirty-four thousand, nine hundred twenty-three".