126338071 has 4 divisors (see below), whose sum is σ = 126481392. Its totient is φ = 126194752.

The previous prime is 126338059. The next prime is 126338077. The reversal of 126338071 is 170833621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170833621 = 7 ⋅24404803.

It is a cyclic number.

It is not a de Polignac number, because 126338071 - 2⁹ = 126337559 is a prime.

It is a super-2 number, since 2×126338071² = 31922616368002082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126338077) 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, 70330 + ... + 72103.

It is an arithmetic number, because the mean of its divisors is an integer number (31620348).

Almost surely, 2^126338071 is an apocalyptic number.

126338071 is a deficient number, since it is larger than the sum of its proper divisors (143321).

126338071 is an equidigital number, since it uses as much as digits as its factorization.

126338071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143320.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 126338071 is about 11240.0209519378. The cubic root of 126338071 is about 501.7777662695. Note that the first 4 decimals are identical.

The spelling of 126338071 in words is "one hundred twenty-six million, three hundred thirty-eight thousand, seventy-one".