155012103 has 32 divisors (see below), whose sum is σ = 249117120. Its totient is φ = 94878720.

The previous prime is 155012093. The next prime is 155012113. The reversal of 155012103 is 301210551.

155012103 is a `hidden beast` number, since 1 + 550 + 12 + 103 = 666.

It is an interprime number because it is at equal distance from previous prime (155012093) and next prime (155012113).

It is not a de Polignac number, because 155012103 - 2⁴ = 155012087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155012113) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 14701 + ... + 22937.

It is an arithmetic number, because the mean of its divisors is an integer number (7784910).

Almost surely, 2^155012103 is an apocalyptic number.

155012103 is a deficient number, since it is larger than the sum of its proper divisors (94105017).

155012103 is a wasteful number, since it uses less digits than its factorization.

155012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8304 (or 8298 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 155012103 is about 12450.3856566775. The cubic root of 155012103 is about 537.1825165301.

Adding to 155012103 its reverse (301210551), we get a palindrome (456222654).

The spelling of 155012103 in words is "one hundred fifty-five million, twelve thousand, one hundred three".