1377307138 has 8 divisors (see below), whose sum is σ = 2068211520. Its totient is φ = 687903300.

The previous prime is 1377307069. The next prime is 1377307147. The reversal of 1377307138 is 8317037731.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1377307138.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372838 + ... + 376513.

It is an arithmetic number, because the mean of its divisors is an integer number (258526440).

Almost surely, 2^1377307138 is an apocalyptic number.

1377307138 is a deficient number, since it is larger than the sum of its proper divisors (690904382).

1377307138 is an equidigital number, since it uses as much as digits as its factorization.

1377307138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750272.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 1377307138 is about 37112.0888390831. The cubic root of 1377307138 is about 1112.6116406585.

The spelling of 1377307138 in words is "one billion, three hundred seventy-seven million, three hundred seven thousand, one hundred thirty-eight".