155322201 has 8 divisors (see below), whose sum is σ = 207286144. Its totient is φ = 103453200.

The previous prime is 155322179. The next prime is 155322221. The reversal of 155322201 is 102223551.

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

It is not a de Polignac number, because 155322201 - 2¹¹ = 155320153 is a prime.

It is a super-2 number, since 2×155322201² = 48249972246968802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155322221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19825 + ... + 26526.

It is an arithmetic number, because the mean of its divisors is an integer number (25910768).

Almost surely, 2^155322201 is an apocalyptic number.

It is an amenable number.

155322201 is a deficient number, since it is larger than the sum of its proper divisors (51963943).

155322201 is a wasteful number, since it uses less digits than its factorization.

155322201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47471.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 155322201 is about 12462.8327839220. The cubic root of 155322201 is about 537.5404848539.

Adding to 155322201 its reverse (102223551), we get a palindrome (257545752).

The spelling of 155322201 in words is "one hundred fifty-five million, three hundred twenty-two thousand, two hundred one".