1277404113 has 16 divisors (see below), whose sum is σ = 1729707840. Its totient is φ = 838423104.

The previous prime is 1277404109. The next prime is 1277404129. The reversal of 1277404113 is 3114047721.

It is not a de Polignac number, because 1277404113 - 2² = 1277404109 is a prime.

It is a super-2 number, since 2×1277404113² = 3263522535818633538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1277404133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64203 + ... + 81711.

It is an arithmetic number, because the mean of its divisors is an integer number (108106740).

Almost surely, 2^1277404113 is an apocalyptic number.

It is an amenable number.

1277404113 is a deficient number, since it is larger than the sum of its proper divisors (452303727).

1277404113 is a wasteful number, since it uses less digits than its factorization.

1277404113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17888.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 1277404113 is about 35740.7906040143. The cubic root of 1277404113 is about 1085.0325580778.

The spelling of 1277404113 in words is "one billion, two hundred seventy-seven million, four hundred four thousand, one hundred thirteen".