1381479337 has 8 divisors (see below), whose sum is σ = 1647478656. Its totient is φ = 1132641312.

The previous prime is 1381479331. The next prime is 1381479371. The reversal of 1381479337 is 7339741831.

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 1381479337 - 2³ = 1381479329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381479331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4290148 + ... + 4290469.

It is an arithmetic number, because the mean of its divisors is an integer number (205934832).

Almost surely, 2^1381479337 is an apocalyptic number.

It is an amenable number.

1381479337 is a deficient number, since it is larger than the sum of its proper divisors (265999319).

1381479337 is an equidigital number, since it uses as much as digits as its factorization.

1381479337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8580647.

The product of its digits is 381024, while the sum is 46.

The square root of 1381479337 is about 37168.2571154473. The cubic root of 1381479337 is about 1113.7339654307.

The spelling of 1381479337 in words is "one billion, three hundred eighty-one million, four hundred seventy-nine thousand, three hundred thirty-seven".