1381879573 has 2 divisors, whose sum is σ = 1381879574. Its totient is φ = 1381879572.

The previous prime is 1381879567. The next prime is 1381879579. The reversal of 1381879573 is 3759781831.

It is a balanced prime because it is at equal distance from previous prime (1381879567) and next prime (1381879579).

It can be written as a sum of positive squares in only one way, i.e., 840014289 + 541865284 = 28983^2 + 23278^2 .

It is a cyclic number.

It is not a de Polignac number, because 1381879573 - 2²¹ = 1379782421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1381879573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1381879579) 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 as a sum of consecutive naturals, namely, 690939786 + 690939787.

It is an arithmetic number, because the mean of its divisors is an integer number (690939787).

Almost surely, 2^1381879573 is an apocalyptic number.

It is an amenable number.

1381879573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381879573 is an equidigital number, since it uses as much as digits as its factorization.

1381879573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 52.

The square root of 1381879573 is about 37173.6408359472. The cubic root of 1381879573 is about 1113.8415103826.

The spelling of 1381879573 in words is "one billion, three hundred eighty-one million, eight hundred seventy-nine thousand, five hundred seventy-three".