1277113394 has 8 divisors (see below), whose sum is σ = 1917683100. Its totient is φ = 637885696.

The previous prime is 1277113393. The next prime is 1277113399. The reversal of 1277113394 is 4933117721.

It can be written as a sum of positive squares in 2 ways, for example, as 1271992225 + 5121169 = 35665^2 + 2263^2 .

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

It is a super-2 number, since 2×1277113394² = 3262037242268398472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1277113393) 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, 333119 + ... + 336930.

Almost surely, 2^1277113394 is an apocalyptic number.

1277113394 is a deficient number, since it is larger than the sum of its proper divisors (640569706).

1277113394 is an equidigital number, since it uses as much as digits as its factorization.

1277113394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671004.

The product of its digits is 31752, while the sum is 38.

The square root of 1277113394 is about 35736.7233248937. The cubic root of 1277113394 is about 1084.9502391755.

The spelling of 1277113394 in words is "one billion, two hundred seventy-seven million, one hundred thirteen thousand, three hundred ninety-four".