155945423 has 2 divisors, whose sum is σ = 155945424. Its totient is φ = 155945422.

The previous prime is 155945411. The next prime is 155945429. The reversal of 155945423 is 324549551.

It is a strong prime.

It is an emirp because it is prime and its reverse (324549551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155945423 - 2¹⁶ = 155879887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155945429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77972711 + 77972712.

It is an arithmetic number, because the mean of its divisors is an integer number (77972712).

Almost surely, 2^155945423 is an apocalyptic number.

155945423 is a deficient number, since it is larger than the sum of its proper divisors (1).

155945423 is an equidigital number, since it uses as much as digits as its factorization.

155945423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 38.

The square root of 155945423 is about 12487.8109771088. The cubic root of 155945423 is about 538.2584761951.

The spelling of 155945423 in words is "one hundred fifty-five million, nine hundred forty-five thousand, four hundred twenty-three".