1353982979 has 2 divisors, whose sum is σ = 1353982980. Its totient is φ = 1353982978.

The previous prime is 1353982963. The next prime is 1353983051. The reversal of 1353982979 is 9792893531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1353982979 - 2⁴ = 1353982963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1353984979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676991489 + 676991490.

It is an arithmetic number, because the mean of its divisors is an integer number (676991490).

Almost surely, 2^1353982979 is an apocalyptic number.

1353982979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353982979 is an equidigital number, since it uses as much as digits as its factorization.

1353982979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 56.

The square root of 1353982979 is about 36796.5077011392. The cubic root of 1353982979 is about 1106.2953024145.

The spelling of 1353982979 in words is "one billion, three hundred fifty-three million, nine hundred eighty-two thousand, nine hundred seventy-nine".