43290125 has 8 divisors (see below), whose sum is σ = 54026232. Its totient is φ = 34632000.

The previous prime is 43290119. The next prime is 43290131. The reversal of 43290125 is 52109234.

It is an interprime number because it is at equal distance from previous prime (43290119) and next prime (43290131).

It can be written as a sum of positive squares in 4 ways, for example, as 217156 + 43072969 = 466^2 + 6563^2 .

It is not a de Polignac number, because 43290125 - 2¹⁰ = 43289101 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43290094 and 43290103.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 173036 + ... + 173285.

It is an arithmetic number, because the mean of its divisors is an integer number (6753279).

Almost surely, 2^43290125 is an apocalyptic number.

It is an amenable number.

43290125 is a deficient number, since it is larger than the sum of its proper divisors (10736107).

43290125 is an equidigital number, since it uses as much as digits as its factorization.

43290125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346336 (or 346326 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 43290125 is about 6579.5231590139. The cubic root of 43290125 is about 351.1259656704.

Adding to 43290125 its reverse (52109234), we get a palindrome (95399359).

The spelling of 43290125 in words is "forty-three million, two hundred ninety thousand, one hundred twenty-five".