1277120006 has 8 divisors (see below), whose sum is σ = 1919358504. Its totient is φ = 637333840.

The previous prime is 1277120003. The next prime is 1277120021. The reversal of 1277120006 is 6000217721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1277120003) 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, 611780 + ... + 613863.

It is an arithmetic number, because the mean of its divisors is an integer number (239919813).

Almost surely, 2^1277120006 is an apocalyptic number.

1277120006 is a deficient number, since it is larger than the sum of its proper divisors (642238498).

1277120006 is a wasteful number, since it uses less digits than its factorization.

1277120006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226166.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 1277120006 is about 35736.8158346543. The cubic root of 1277120006 is about 1084.9521115435.

Adding to 1277120006 its reverse (6000217721), we get a palindrome (7277337727).

The spelling of 1277120006 in words is "one billion, two hundred seventy-seven million, one hundred twenty thousand, six".