155235216 has 40 divisors (see below), whose sum is σ = 401536800. Its totient is φ = 51678976.

The previous prime is 155235191. The next prime is 155235221. The reversal of 155235216 is 612532551.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48811 + ... + 51893.

It is an arithmetic number, because the mean of its divisors is an integer number (10038420).

Almost surely, 2^155235216 is an apocalyptic number.

155235216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155235216 is an abundant number, since it is smaller than the sum of its proper divisors (246301584).

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

155235216 is a wasteful number, since it uses less digits than its factorization.

155235216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143 (or 4137 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 155235216 is about 12459.3425187688. The cubic root of 155235216 is about 537.4401199563.

Adding to 155235216 its reverse (612532551), we get a palindrome (767767767).

The spelling of 155235216 in words is "one hundred fifty-five million, two hundred thirty-five thousand, two hundred sixteen".