126131406 has 16 divisors (see below), whose sum is σ = 252372864. Its totient is φ = 42025464.

The previous prime is 126131399. The next prime is 126131407. The reversal of 126131406 is 604131621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126131407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25101 + ... + 29703.

It is an arithmetic number, because the mean of its divisors is an integer number (15773304).

Almost surely, 2^126131406 is an apocalyptic number.

126131406 is an abundant number, since it is smaller than the sum of its proper divisors (126241458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126131406 is a wasteful number, since it uses less digits than its factorization.

126131406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9175.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 126131406 is about 11230.8239234706. The cubic root of 126131406 is about 501.5040126888.

The spelling of 126131406 in words is "one hundred twenty-six million, one hundred thirty-one thousand, four hundred six".