155100201 has 16 divisors (see below), whose sum is σ = 217451520. Its totient is φ = 98143760.

The previous prime is 155100199. The next prime is 155100217. The reversal of 155100201 is 102001551.

It is not a de Polignac number, because 155100201 - 2¹ = 155100199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155100221) by changing a digit.

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, 460 + ... + 17618.

It is an arithmetic number, because the mean of its divisors is an integer number (13590720).

Almost surely, 2^155100201 is an apocalyptic number.

It is an amenable number.

155100201 is a deficient number, since it is larger than the sum of its proper divisors (62351319).

155100201 is a wasteful number, since it uses less digits than its factorization.

155100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17316.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 155100201 is about 12453.9231168335. The cubic root of 155100201 is about 537.2842628710.

Adding to 155100201 its reverse (102001551), we get a palindrome (257101752).

The spelling of 155100201 in words is "one hundred fifty-five million, one hundred thousand, two hundred one".