10125945 has 32 divisors (see below), whose sum is σ = 18195840. Its totient is φ = 5342400.

The previous prime is 10125943. The next prime is 10125953. The reversal of 10125945 is 54952101.

It is not a de Polignac number, because 10125945 - 2¹ = 10125943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10125943) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 14095 + ... + 14795.

It is an arithmetic number, because the mean of its divisors is an integer number (568620).

Almost surely, 2^10125945 is an apocalyptic number.

10125945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10125945 is a deficient number, since it is larger than the sum of its proper divisors (8069895).

10125945 is a wasteful number, since it uses less digits than its factorization.

10125945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 10125945 is about 3182.1290042989. The cubic root of 10125945 is about 216.3441658347.

It can be divided in two parts, 10125 and 945, that multiplied together give a triangular number (9568125 = T₄₃₇₄).

The spelling of 10125945 in words is "ten million, one hundred twenty-five thousand, nine hundred forty-five".