126772006 has 4 divisors (see below), whose sum is σ = 190158012. Its totient is φ = 63386002.

The previous prime is 126772001. The next prime is 126772013. The reversal of 126772006 is 600277621.

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

It is a super-2 number, since 2×126772006² = 32142283010528072, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126772001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31693000 + ... + 31693003.

It is an arithmetic number, because the mean of its divisors is an integer number (47539503).

Almost surely, 2^126772006 is an apocalyptic number.

126772006 is a deficient number, since it is larger than the sum of its proper divisors (63386006).

126772006 is an equidigital number, since it uses as much as digits as its factorization.

126772006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63386005.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 126772006 is about 11259.3075275525. The cubic root of 126772006 is about 502.3515973077.

The spelling of 126772006 in words is "one hundred twenty-six million, seven hundred seventy-two thousand, six".