1377137111 has 8 divisors (see below), whose sum is σ = 1605991200. Its totient is φ = 1180402944.

The previous prime is 1377137093. The next prime is 1377137129. The reversal of 1377137111 is 1117317731.

It is an interprime number because it is at equal distance from previous prime (1377137093) and next prime (1377137129).

It is a de Polignac number, because none of the positive numbers 2^k-1377137111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377137131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2007146 + ... + 2007831.

It is an arithmetic number, because the mean of its divisors is an integer number (200748900).

Almost surely, 2^1377137111 is an apocalyptic number.

1377137111 is a deficient number, since it is larger than the sum of its proper divisors (228854089).

1377137111 is an frugal number, since it uses more digits than its factorization.

1377137111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014998 (or 4014984 counting only the distinct ones).

The product of its digits is 3087, while the sum is 32.

The square root of 1377137111 is about 37109.7980457992. The cubic root of 1377137111 is about 1112.5658552271.

The spelling of 1377137111 in words is "one billion, three hundred seventy-seven million, one hundred thirty-seven thousand, one hundred eleven".