126672141 has 4 divisors (see below), whose sum is σ = 168896192. Its totient is φ = 84448092.

The previous prime is 126672137. The next prime is 126672149. The reversal of 126672141 is 141276621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 126672141 - 2² = 126672137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126672099 and 126672108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126672149) 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, 21112021 + ... + 21112026.

It is an arithmetic number, because the mean of its divisors is an integer number (42224048).

Almost surely, 2^126672141 is an apocalyptic number.

It is an amenable number.

126672141 is a deficient number, since it is larger than the sum of its proper divisors (42224051).

126672141 is an equidigital number, since it uses as much as digits as its factorization.

126672141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42224050.

The product of its digits is 4032, while the sum is 30.

The square root of 126672141 is about 11254.8718784356. The cubic root of 126672141 is about 502.2196530329.

The spelling of 126672141 in words is "one hundred twenty-six million, six hundred seventy-two thousand, one hundred forty-one".