1340122771 has 4 divisors (see below), whose sum is σ = 1443209152. Its totient is φ = 1237036392.

The previous prime is 1340122759. The next prime is 1340122783. The reversal of 1340122771 is 1772210431.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1340122759) and next prime (1340122783).

It is a cyclic number.

It is not a de Polignac number, because 1340122771 - 2¹³ = 1340114579 is a prime.

It is a super-4 number, since 4×1340122771⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340122711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51543171 + ... + 51543196.

It is an arithmetic number, because the mean of its divisors is an integer number (360802288).

Almost surely, 2^1340122771 is an apocalyptic number.

1340122771 is a deficient number, since it is larger than the sum of its proper divisors (103086381).

1340122771 is a wasteful number, since it uses less digits than its factorization.

1340122771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103086380.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1340122771 is about 36607.6873211078. The cubic root of 1340122771 is about 1102.5074400253.

The spelling of 1340122771 in words is "one billion, three hundred forty million, one hundred twenty-two thousand, seven hundred seventy-one".