1374121277 has 4 divisors (see below), whose sum is σ = 1374464700. Its totient is φ = 1373777856.

The previous prime is 1374121247. The next prime is 1374121279. The reversal of 1374121277 is 7721214731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7721214731 = 727 ⋅10620653.

It can be written as a sum of positive squares in 2 ways, for example, as 244421956 + 1129699321 = 15634^2 + 33611^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374121277 - 2⁶ = 1374121213 is a prime.

It is a super-2 number, since 2×1374121277² = 3776418567808221458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1374121279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165638 + ... + 173735.

It is an arithmetic number, because the mean of its divisors is an integer number (343616175).

Almost surely, 2^1374121277 is an apocalyptic number.

It is an amenable number.

1374121277 is a deficient number, since it is larger than the sum of its proper divisors (343423).

1374121277 is an equidigital number, since it uses as much as digits as its factorization.

1374121277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343422.

The product of its digits is 16464, while the sum is 35.

The square root of 1374121277 is about 37069.1418433176. The cubic root of 1374121277 is about 1111.7531145078.

The spelling of 1374121277 in words is "one billion, three hundred seventy-four million, one hundred twenty-one thousand, two hundred seventy-seven".