135779757 has 16 divisors (see below), whose sum is σ = 194626560. Its totient is φ = 83929392.

The previous prime is 135779753. The next prime is 135779759. The reversal of 135779757 is 757977531.

It is not a de Polignac number, because 135779757 - 2² = 135779753 is a prime.

It is a super-2 number, since 2×135779757² = 36872284821958098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135779753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22663 + ... + 28020.

It is an arithmetic number, because the mean of its divisors is an integer number (12164160).

Almost surely, 2^135779757 is an apocalyptic number.

It is an amenable number.

135779757 is a deficient number, since it is larger than the sum of its proper divisors (58846803).

135779757 is a wasteful number, since it uses less digits than its factorization.

135779757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50752.

The product of its digits is 1620675, while the sum is 51.

The square root of 135779757 is about 11652.4571228561. The cubic root of 135779757 is about 513.9785667858.

The spelling of 135779757 in words is "one hundred thirty-five million, seven hundred seventy-nine thousand, seven hundred fifty-seven".