126253667 has 4 divisors (see below), whose sum is σ = 127089936. Its totient is φ = 125417400.

The previous prime is 126253663. The next prime is 126253681. The reversal of 126253667 is 766352621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126253667 - 2² = 126253663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126253667.

It is not an unprimeable number, because it can be changed into a prime (126253663) 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, 417908 + ... + 418209.

It is an arithmetic number, because the mean of its divisors is an integer number (31772484).

Almost surely, 2^126253667 is an apocalyptic number.

126253667 is a deficient number, since it is larger than the sum of its proper divisors (836269).

126253667 is an equidigital number, since it uses as much as digits as its factorization.

126253667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836268.

The product of its digits is 90720, while the sum is 38.

The square root of 126253667 is about 11236.2657052955. The cubic root of 126253667 is about 501.6659987310.

The spelling of 126253667 in words is "one hundred twenty-six million, two hundred fifty-three thousand, six hundred sixty-seven".