155235201 has 8 divisors (see below), whose sum is σ = 225796704. Its totient is φ = 94081920.

The previous prime is 155235191. The next prime is 155235221. The reversal of 155235201 is 102532551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155235201 - 2⁶ = 155235137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155235221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2352016 + ... + 2352081.

It is an arithmetic number, because the mean of its divisors is an integer number (28224588).

Almost surely, 2^155235201 is an apocalyptic number.

155235201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

155235201 is a deficient number, since it is larger than the sum of its proper divisors (70561503).

155235201 is a wasteful number, since it uses less digits than its factorization.

155235201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704111.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 155235201 is about 12459.3419168109. The cubic root of 155235201 is about 537.4401026458.

Adding to 155235201 its reverse (102532551), we get a palindrome (257767752).

The spelling of 155235201 in words is "one hundred fifty-five million, two hundred thirty-five thousand, two hundred one".