155234211 has 16 divisors (see below), whose sum is σ = 226005120. Its totient is φ = 93993920.

The previous prime is 155234207. The next prime is 155234239. The reversal of 155234211 is 112432551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 155234211 - 2² = 155234207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155234201) 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, 61900 + ... + 64358.

It is an arithmetic number, because the mean of its divisors is an integer number (14125320).

Almost surely, 2^155234211 is an apocalyptic number.

155234211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155234211 is a deficient number, since it is larger than the sum of its proper divisors (70770909).

155234211 is a wasteful number, since it uses less digits than its factorization.

155234211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386.

The product of its digits is 1200, while the sum is 24.

The square root of 155234211 is about 12459.3021875224. The cubic root of 155234211 is about 537.4389601497.

Adding to 155234211 its reverse (112432551), we get a palindrome (267666762).

The spelling of 155234211 in words is "one hundred fifty-five million, two hundred thirty-four thousand, two hundred eleven".