126538738 has 8 divisors (see below), whose sum is σ = 189866880. Its totient is φ = 63249780.

The previous prime is 126538691. The next prime is 126538781. The reversal of 126538738 is 837835621.

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

It is a junction number, because it is equal to n+sod(n) for n = 126538694 and 126538703.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403 + ... + 15913.

It is an arithmetic number, because the mean of its divisors is an integer number (23733360).

Almost surely, 2^126538738 is an apocalyptic number.

126538738 is a deficient number, since it is larger than the sum of its proper divisors (63328142).

126538738 is a wasteful number, since it uses less digits than its factorization.

126538738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19592.

The product of its digits is 241920, while the sum is 43.

The square root of 126538738 is about 11248.9438615365. The cubic root of 126538738 is about 502.0432892305.

The spelling of 126538738 in words is "one hundred twenty-six million, five hundred thirty-eight thousand, seven hundred thirty-eight".