155122253 has 8 divisors (see below), whose sum is σ = 182241696. Its totient is φ = 130172400.

The previous prime is 155122243. The next prime is 155122259. The reversal of 155122253 is 352221551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155122253 - 2⁸ = 155121997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155122259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542243 + ... + 542528.

It is an arithmetic number, because the mean of its divisors is an integer number (22780212).

Almost surely, 2^155122253 is an apocalyptic number.

155122253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

155122253 is a deficient number, since it is larger than the sum of its proper divisors (27119443).

155122253 is a wasteful number, since it uses less digits than its factorization.

155122253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084795.

The product of its digits is 3000, while the sum is 26.

The square root of 155122253 is about 12454.8084288760. The cubic root of 155122253 is about 537.3097251872.

The spelling of 155122253 in words is "one hundred fifty-five million, one hundred twenty-two thousand, two hundred fifty-three".