1377499349 has 8 divisors (see below), whose sum is σ = 1385649720. Its totient is φ = 1369368000.

The previous prime is 1377499327. The next prime is 1377499397. The reversal of 1377499349 is 9439947731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 283080625 + 1094418724 = 16825^2 + 33082^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1377499349 - 2¹² = 1377495253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1377499294 and 1377499303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377498349) 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, 156239 + ... + 164819.

It is an arithmetic number, because the mean of its divisors is an integer number (173206215).

Almost surely, 2^1377499349 is an apocalyptic number.

It is an amenable number.

1377499349 is a deficient number, since it is larger than the sum of its proper divisors (8150371).

1377499349 is an equidigital number, since it uses as much as digits as its factorization.

1377499349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9511.

The product of its digits is 5143824, while the sum is 56.

The square root of 1377499349 is about 37114.6783496772. The cubic root of 1377499349 is about 1112.6633953332.

The spelling of 1377499349 in words is "one billion, three hundred seventy-seven million, four hundred ninety-nine thousand, three hundred forty-nine".