10503155 has 16 divisors (see below), whose sum is σ = 13641600. Its totient is φ = 7717248.

The previous prime is 10503139. The next prime is 10503179. The reversal of 10503155 is 55130501.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10503155 - 2⁴ = 10503139 is a prime.

It is a super-2 number, since 2×10503155² = 220632529908050, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 22454 + ... + 22916.

It is an arithmetic number, because the mean of its divisors is an integer number (852600).

Almost surely, 2^10503155 is an apocalyptic number.

10503155 is a deficient number, since it is larger than the sum of its proper divisors (3138445).

10503155 is a wasteful number, since it uses less digits than its factorization.

10503155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 10503155 is about 3240.8571397086. The cubic root of 10503155 is about 218.9978871518.

Adding to 10503155 its reverse (55130501), we get a palindrome (65633656).

The spelling of 10503155 in words is "ten million, five hundred three thousand, one hundred fifty-five".