155232234 has 32 divisors (see below), whose sum is σ = 347495040. Its totient is φ = 51363936.

The previous prime is 155232179. The next prime is 155232247. The reversal of 155232234 is 432232551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 155232198 and 155232207.

It is an unprimeable number.

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, 3094 + ... + 17889.

It is an arithmetic number, because the mean of its divisors is an integer number (10859220).

Almost surely, 2^155232234 is an apocalyptic number.

155232234 is an abundant number, since it is smaller than the sum of its proper divisors (192262806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155232234 is a wasteful number, since it uses less digits than its factorization.

155232234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21131 (or 21125 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 155232234 is about 12459.2228489581. Note that the first 3 decimals coincide. The cubic root of 155232234 is about 537.4366786051.

Adding to 155232234 its reverse (432232551), we get a palindrome (587464785).

The spelling of 155232234 in words is "one hundred fifty-five million, two hundred thirty-two thousand, two hundred thirty-four".