126132405 has 16 divisors (see below), whose sum is σ = 230642304. Its totient is φ = 57660480.

The previous prime is 126132341. The next prime is 126132407. The reversal of 126132405 is 504231621.

It is not a de Polignac number, because 126132405 - 2⁶ = 126132341 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126132407) 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, 600526 + ... + 600735.

It is an arithmetic number, because the mean of its divisors is an integer number (14415144).

Almost surely, 2^126132405 is an apocalyptic number.

126132405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126132405 is a deficient number, since it is larger than the sum of its proper divisors (104509899).

126132405 is a wasteful number, since it uses less digits than its factorization.

126132405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201276.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 126132405 is about 11230.8683991934. The cubic root of 126132405 is about 501.5053367079.

The spelling of 126132405 in words is "one hundred twenty-six million, one hundred thirty-two thousand, four hundred five".