126140443 has 12 divisors (see below), whose sum is σ = 149317504. Its totient is φ = 105850800.

The previous prime is 126140419. The next prime is 126140447. The reversal of 126140443 is 344041621.

It is not a de Polignac number, because 126140443 - 2¹⁷ = 126009371 is a prime.

It is a super-2 number, since 2×126140443² = 31822822720472498, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126140447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38523 + ... + 41668.

Almost surely, 2^126140443 is an apocalyptic number.

126140443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

126140443 is a deficient number, since it is larger than the sum of its proper divisors (23177061).

126140443 is a wasteful number, since it uses less digits than its factorization.

126140443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80226 (or 80215 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 126140443 is about 11231.2262464969. The cubic root of 126140443 is about 501.5159895725.

The spelling of 126140443 in words is "one hundred twenty-six million, one hundred forty thousand, four hundred forty-three".