155320633 has 24 divisors (see below), whose sum is σ = 181301760. Its totient is φ = 132612480.

The previous prime is 155320631. The next prime is 155320651. The reversal of 155320633 is 336023551.

It is not a de Polignac number, because 155320633 - 2¹ = 155320631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155320631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119853 + ... + 121141.

It is an arithmetic number, because the mean of its divisors is an integer number (7554240).

Almost surely, 2^155320633 is an apocalyptic number.

155320633 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

155320633 is a deficient number, since it is larger than the sum of its proper divisors (25981127).

155320633 is a wasteful number, since it uses less digits than its factorization.

155320633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 155320633 is about 12462.7698767168. The cubic root of 155320633 is about 537.5386759983.

The spelling of 155320633 in words is "one hundred fifty-five million, three hundred twenty thousand, six hundred thirty-three".