155054923 has 2 divisors, whose sum is σ = 155054924. Its totient is φ = 155054922.

The previous prime is 155054903. The next prime is 155054969. The reversal of 155054923 is 329450551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155054923 - 2⁹ = 155054411 is a prime.

It is not a weakly prime, because it can be changed into another prime (155054903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77527461 + 77527462.

It is an arithmetic number, because the mean of its divisors is an integer number (77527462).

Almost surely, 2^155054923 is an apocalyptic number.

155054923 is a deficient number, since it is larger than the sum of its proper divisors (1).

155054923 is an equidigital number, since it uses as much as digits as its factorization.

155054923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 155054923 is about 12452.1051633850. The cubic root of 155054923 is about 537.2319751148.

The spelling of 155054923 in words is "one hundred fifty-five million, fifty-four thousand, nine hundred twenty-three".