155334225 has 12 divisors (see below), whose sum is σ = 256819376. Its totient is φ = 82844880.

The previous prime is 155334217. The next prime is 155334239. The reversal of 155334225 is 522433551.

It is not a de Polignac number, because 155334225 - 2³ = 155334217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155334192 and 155334201.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1035487 + ... + 1035636.

Almost surely, 2^155334225 is an apocalyptic number.

155334225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155334225 is a deficient number, since it is larger than the sum of its proper divisors (101485151).

155334225 is a wasteful number, since it uses less digits than its factorization.

155334225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071136 (or 2071131 counting only the distinct ones).

The product of its digits is 18000, while the sum is 30.

The square root of 155334225 is about 12463.3151689268. The cubic root of 155334225 is about 537.5543554189.

Adding to 155334225 its reverse (522433551), we get a palindrome (677767776).

It can be divided in two parts, 1553 and 34225, that added together give a triangular number (35778 = T₂₆₇).

The spelling of 155334225 in words is "one hundred fifty-five million, three hundred thirty-four thousand, two hundred twenty-five".