1277413056 has 84 divisors (see below), whose sum is σ = 3750847464. Its totient is φ = 415411200.

The previous prime is 1277413019. The next prime is 1277413061. The reversal of 1277413056 is 6503147721.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1277413056.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3430 + ... + 50661.

It is an arithmetic number, because the mean of its divisors is an integer number (44652946).

Almost surely, 2^1277413056 is an apocalyptic number.

1277413056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1277413056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1875423732).

1277413056 is an abundant number, since it is smaller than the sum of its proper divisors (2473434408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1277413056 is a wasteful number, since it uses less digits than its factorization.

1277413056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54150 (or 54137 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 1277413056 is about 35740.9157129473. The cubic root of 1277413056 is about 1085.0350901462.

The spelling of 1277413056 in words is "one billion, two hundred seventy-seven million, four hundred thirteen thousand, fifty-six".