1377778134 has 8 divisors (see below), whose sum is σ = 2755556280. Its totient is φ = 459259376.

The previous prime is 1377778097. The next prime is 1377778153. The reversal of 1377778134 is 4318777731.

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

1377778134 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114814839 + ... + 114814850.

It is an arithmetic number, because the mean of its divisors is an integer number (344444535).

Almost surely, 2^1377778134 is an apocalyptic number.

1377778134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1377778134 is a wasteful number, since it uses less digits than its factorization.

1377778134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229629694.

The product of its digits is 691488, while the sum is 48.

The square root of 1377778134 is about 37118.4338839882. The cubic root of 1377778134 is about 1112.7384523416.

The spelling of 1377778134 in words is "one billion, three hundred seventy-seven million, seven hundred seventy-eight thousand, one hundred thirty-four".