126065903 has 4 divisors (see below), whose sum is σ = 126699600. Its totient is φ = 125432208.

The previous prime is 126065899. The next prime is 126065917. The reversal of 126065903 is 309560621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 309560621 = 14767 ⋅20963.

It is a cyclic number.

It is not a de Polignac number, because 126065903 - 2² = 126065899 is a prime.

It is a super-2 number, since 2×126065903² = 31785223798410818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126065903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126065983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316550 + ... + 316947.

It is an arithmetic number, because the mean of its divisors is an integer number (31674900).

Almost surely, 2^126065903 is an apocalyptic number.

126065903 is a deficient number, since it is larger than the sum of its proper divisors (633697).

126065903 is an equidigital number, since it uses as much as digits as its factorization.

126065903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633696.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 126065903 is about 11227.9073295071. The cubic root of 126065903 is about 501.4171833874.

The spelling of 126065903 in words is "one hundred twenty-six million, sixty-five thousand, nine hundred three".