155284200 has 72 divisors (see below), whose sum is σ = 521502150. Its totient is φ = 41408640.

The previous prime is 155284189. The next prime is 155284211. The reversal of 155284200 is 2482551.

It is a happy number.

155284200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155284189) and next prime (155284211).

It can be written as a sum of positive squares in 3 ways, for example, as 86825124 + 68459076 = 9318^2 + 8274^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×155284200² = 48226365539280000, which contains 22 as substring.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 41335 + ... + 44934.

Almost surely, 2^155284200 is an apocalyptic number.

155284200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155284200 is an abundant number, since it is smaller than the sum of its proper divisors (366217950).

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

155284200 is a wasteful number, since it uses less digits than its factorization.

155284200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86291 (or 86279 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 155284200 is about 12461.3081175292. The cubic root of 155284200 is about 537.4966432096.

The spelling of 155284200 in words is "one hundred fifty-five million, two hundred eighty-four thousand, two hundred".