126540438 has 8 divisors (see below), whose sum is σ = 253080888. Its totient is φ = 42180144.

The previous prime is 126540431. The next prime is 126540493. The reversal of 126540438 is 834045621.

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

126540438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 126540399 and 126540408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126540431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10545031 + ... + 10545042.

It is an arithmetic number, because the mean of its divisors is an integer number (31635111).

Almost surely, 2^126540438 is an apocalyptic number.

126540438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

126540438 is a wasteful number, since it uses less digits than its factorization.

126540438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21090078.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 126540438 is about 11249.0194239320. The cubic root of 126540438 is about 502.0455374742.

The spelling of 126540438 in words is "one hundred twenty-six million, five hundred forty thousand, four hundred thirty-eight".