1379351249 has 8 divisors (see below), whose sum is σ = 1385791272. Its totient is φ = 1372924800.

The previous prime is 1379351221. The next prime is 1379351257. The reversal of 1379351249 is 9421539731.

It can be written as a sum of positive squares in 4 ways, for example, as 1456849 + 1377894400 = 1207^2 + 37120^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1379351249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1379351299) 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, 239099 + ... + 244799.

It is an arithmetic number, because the mean of its divisors is an integer number (173223909).

Almost surely, 2^1379351249 is an apocalyptic number.

It is an amenable number.

1379351249 is a deficient number, since it is larger than the sum of its proper divisors (6440023).

1379351249 is an equidigital number, since it uses as much as digits as its factorization.

1379351249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787.

The product of its digits is 204120, while the sum is 44.

The square root of 1379351249 is about 37139.6183206021. The cubic root of 1379351249 is about 1113.1617908836.

The spelling of 1379351249 in words is "one billion, three hundred seventy-nine million, three hundred fifty-one thousand, two hundred forty-nine".