1381516679 has 8 divisors (see below), whose sum is σ = 1465164288. Its totient is φ = 1298133760.

The previous prime is 1381516627. The next prime is 1381516711. The reversal of 1381516679 is 9766151831.

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 1381516679 - 2¹⁶ = 1381451143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381516379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55367 + ... + 76344.

It is an arithmetic number, because the mean of its divisors is an integer number (183145536).

Almost surely, 2^1381516679 is an apocalyptic number.

1381516679 is a deficient number, since it is larger than the sum of its proper divisors (83647609).

1381516679 is a wasteful number, since it uses less digits than its factorization.

1381516679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132345.

The product of its digits is 272160, while the sum is 47.

The square root of 1381516679 is about 37168.7594493010. The cubic root of 1381516679 is about 1113.7440002482.

The spelling of 1381516679 in words is "one billion, three hundred eighty-one million, five hundred sixteen thousand, six hundred seventy-nine".