155103245 has 12 divisors (see below), whose sum is σ = 204583260. Its totient is φ = 112801920.

The previous prime is 155103211. The next prime is 155103253. The reversal of 155103245 is 542301551.

It can be written as a sum of positive squares in 2 ways, for example, as 85581001 + 69522244 = 9251^2 + 8338^2 .

It is not a de Polignac number, because 155103245 - 2⁶ = 155103181 is a prime.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 127580 + ... + 128789.

It is an arithmetic number, because the mean of its divisors is an integer number (17048605).

Almost surely, 2^155103245 is an apocalyptic number.

It is an amenable number.

155103245 is a deficient number, since it is larger than the sum of its proper divisors (49480015).

155103245 is a wasteful number, since it uses less digits than its factorization.

155103245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256396 (or 256385 counting only the distinct ones).

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

The square root of 155103245 is about 12454.0453267201. The cubic root of 155103245 is about 537.2877777657.

Adding to 155103245 its reverse (542301551), we get a palindrome (697404796).

The spelling of 155103245 in words is "one hundred fifty-five million, one hundred three thousand, two hundred forty-five".