126540903 has 16 divisors (see below), whose sum is σ = 170945280. Its totient is φ = 83255424.

The previous prime is 126540859. The next prime is 126540929. The reversal of 126540903 is 309045621.

It is not a de Polignac number, because 126540903 - 2⁸ = 126540647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126540983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95278 + ... + 96596.

It is an arithmetic number, because the mean of its divisors is an integer number (10684080).

Almost surely, 2^126540903 is an apocalyptic number.

126540903 is a deficient number, since it is larger than the sum of its proper divisors (44404377).

126540903 is a wasteful number, since it uses less digits than its factorization.

126540903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 126540903 is about 11249.0400923812. The cubic root of 126540903 is about 502.0461524315.

The spelling of 126540903 in words is "one hundred twenty-six million, five hundred forty thousand, nine hundred three".