155000383 has 2 divisors, whose sum is σ = 155000384. Its totient is φ = 155000382.

The previous prime is 155000371. The next prime is 155000401. The reversal of 155000383 is 383000551.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155000383 - 2¹³ = 154992191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155000303) 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, 77500191 + 77500192.

It is an arithmetic number, because the mean of its divisors is an integer number (77500192).

Almost surely, 2^155000383 is an apocalyptic number.

155000383 is a deficient number, since it is larger than the sum of its proper divisors (1).

155000383 is an equidigital number, since it uses as much as digits as its factorization.

155000383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 155000383 is about 12449.9149796294. The cubic root of 155000383 is about 537.1689779362.

The spelling of 155000383 in words is "one hundred fifty-five million, three hundred eighty-three", and thus it is an aban number.