135753979 has 2 divisors, whose sum is σ = 135753980. Its totient is φ = 135753978.

The previous prime is 135753953. The next prime is 135754009. The reversal of 135753979 is 979357531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135753979 - 2⁹ = 135753467 is a prime.

It is not a weakly prime, because it can be changed into another prime (135753949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67876989 + 67876990.

It is an arithmetic number, because the mean of its divisors is an integer number (67876990).

Almost surely, 2^135753979 is an apocalyptic number.

135753979 is a deficient number, since it is larger than the sum of its proper divisors (1).

135753979 is an equidigital number, since it uses as much as digits as its factorization.

135753979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 893025, while the sum is 49.

The square root of 135753979 is about 11651.3509517137. The cubic root of 135753979 is about 513.9460381813.

The spelling of 135753979 in words is "one hundred thirty-five million, seven hundred fifty-three thousand, nine hundred seventy-nine".