39103145 has 12 divisors (see below), whose sum is σ = 49848204. Its totient is φ = 29441280.

The previous prime is 39103133. The next prime is 39103147. The reversal of 39103145 is 54130193.

It can be written as a sum of positive squares in 6 ways, for example, as 3136 + 39100009 = 56^2 + 6253^2 .

It is not a de Polignac number, because 39103145 - 2⁶ = 39103081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39103147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12086 + ... + 14975.

It is an arithmetic number, because the mean of its divisors is an integer number (4154017).

Almost surely, 2^39103145 is an apocalyptic number.

It is an amenable number.

39103145 is a deficient number, since it is larger than the sum of its proper divisors (10745059).

39103145 is a wasteful number, since it uses less digits than its factorization.

39103145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27100 (or 27083 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 39103145 is about 6253.2507546076. The cubic root of 39103145 is about 339.4198439522.

The spelling of 39103145 in words is "thirty-nine million, one hundred three thousand, one hundred forty-five".