155299385 has 16 divisors (see below), whose sum is σ = 190502400. Its totient is φ = 121507776.

The previous prime is 155299357. The next prime is 155299399. The reversal of 155299385 is 583992551.

It is a cyclic number.

It is not a de Polignac number, because 155299385 - 2¹⁸ = 155037241 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41252 + ... + 44858.

It is an arithmetic number, because the mean of its divisors is an integer number (11906400).

Almost surely, 2^155299385 is an apocalyptic number.

It is an amenable number.

155299385 is a deficient number, since it is larger than the sum of its proper divisors (35203015).

155299385 is a wasteful number, since it uses less digits than its factorization.

155299385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800.

The product of its digits is 486000, while the sum is 47.

The square root of 155299385 is about 12461.9173885883. The cubic root of 155299385 is about 537.5141629583.

The spelling of 155299385 in words is "one hundred fifty-five million, two hundred ninety-nine thousand, three hundred eighty-five".