126672105 has 24 divisors (see below), whose sum is σ = 235766592. Its totient is φ = 57906912.

The previous prime is 126672103. The next prime is 126672113. The reversal of 126672105 is 501276621.

It is not a de Polignac number, because 126672105 - 2¹ = 126672103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126672103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85437 + ... + 86906.

It is an arithmetic number, because the mean of its divisors is an integer number (9823608).

Almost surely, 2^126672105 is an apocalyptic number.

126672105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126672105 is a deficient number, since it is larger than the sum of its proper divisors (109094487).

126672105 is a wasteful number, since it uses less digits than its factorization.

126672105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172365 (or 172358 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 126672105 is about 11254.8702791281. The cubic root of 126672105 is about 502.2196054563.

The spelling of 126672105 in words is "one hundred twenty-six million, six hundred seventy-two thousand, one hundred five".