103013145 has 12 divisors (see below), whose sum is σ = 178556196. Its totient is φ = 54940320.

The previous prime is 103013123. The next prime is 103013153. The reversal of 103013145 is 541310301.

It can be written as a sum of positive squares in 2 ways, for example, as 76108176 + 26904969 = 8724^2 + 5187^2 .

It is not a de Polignac number, because 103013145 - 2¹⁰ = 103012121 is a prime.

It is a super-2 number, since 2×103013145² = 21223416085582050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1144546 + ... + 1144635.

It is an arithmetic number, because the mean of its divisors is an integer number (14879683).

Almost surely, 2^103013145 is an apocalyptic number.

103013145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103013145 is a deficient number, since it is larger than the sum of its proper divisors (75543051).

103013145 is a wasteful number, since it uses less digits than its factorization.

103013145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289192 (or 2289189 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 103013145 is about 10149.5391520995. The cubic root of 103013145 is about 468.7747549593.

Adding to 103013145 its reverse (541310301), we get a palindrome (644323446).

The spelling of 103013145 in words is "one hundred three million, thirteen thousand, one hundred forty-five".