126103445 has 8 divisors (see below), whose sum is σ = 162964536. Its totient is φ = 93122496.

The previous prime is 126103429. The next prime is 126103451. The reversal of 126103445 is 544301621.

It can be written as a sum of positive squares in 4 ways, for example, as 2582449 + 123520996 = 1607^2 + 11114^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126103445 - 2⁴ = 126103429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969962 + ... + 970091.

It is an arithmetic number, because the mean of its divisors is an integer number (20370567).

Almost surely, 2^126103445 is an apocalyptic number.

It is an amenable number.

126103445 is a deficient number, since it is larger than the sum of its proper divisors (36861091).

126103445 is a wasteful number, since it uses less digits than its factorization.

126103445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940071.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 126103445 is about 11229.5790214950. The cubic root of 126103445 is about 501.4669518952.

The spelling of 126103445 in words is "one hundred twenty-six million, one hundred three thousand, four hundred forty-five".