1137780871 has 4 divisors (see below), whose sum is σ = 1139261200. Its totient is φ = 1136300544.

The previous prime is 1137780851. The next prime is 1137780883. The reversal of 1137780871 is 1780877311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1780877311 = 1949 ⋅913739.

It is a cyclic number.

It is not a de Polignac number, because 1137780871 - 2⁹ = 1137780359 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 (1137780851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739011 + ... + 740548.

It is an arithmetic number, because the mean of its divisors is an integer number (284815300).

Almost surely, 2^1137780871 is an apocalyptic number.

1137780871 is a deficient number, since it is larger than the sum of its proper divisors (1480329).

1137780871 is an equidigital number, since it uses as much as digits as its factorization.

1137780871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480328.

The product of its (nonzero) digits is 65856, while the sum is 43.

The square root of 1137780871 is about 33731.0075598106. The cubic root of 1137780871 is about 1043.9656503699.

The spelling of 1137780871 in words is "one billion, one hundred thirty-seven million, seven hundred eighty thousand, eight hundred seventy-one".