126545403 has 8 divisors (see below), whose sum is σ = 170275600. Its totient is φ = 83589408.

The previous prime is 126545267. The next prime is 126545411. The reversal of 126545403 is 304545621.

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

It is not a de Polignac number, because 126545403 - 2¹² = 126541307 is a prime.

It is a super-3 number, since 3×126545403³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126545413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193168 + ... + 193821.

It is an arithmetic number, because the mean of its divisors is an integer number (21284450).

Almost surely, 2^126545403 is an apocalyptic number.

126545403 is a deficient number, since it is larger than the sum of its proper divisors (43730197).

126545403 is a wasteful number, since it uses less digits than its factorization.

126545403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387101.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 126545403 is about 11249.2401076695. The cubic root of 126545403 is about 502.0521035531.

The spelling of 126545403 in words is "one hundred twenty-six million, five hundred forty-five thousand, four hundred three".