135498769 has 6 divisors (see below), whose sum is σ = 157621074. Its totient is φ = 116141760.

The previous prime is 135498739. The next prime is 135498787. The reversal of 135498769 is 967894531.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 126855169 + 8643600 = 11263^2 + 2940^2 .

It is not a de Polignac number, because 135498769 - 2¹⁷ = 135367697 is a prime.

It is a super-2 number, since 2×135498769² = 36719832801030722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135498739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1382592 + ... + 1382689.

It is an arithmetic number, because the mean of its divisors is an integer number (26270179).

Almost surely, 2^135498769 is an apocalyptic number.

It is an amenable number.

135498769 is a deficient number, since it is larger than the sum of its proper divisors (22122305).

135498769 is an equidigital number, since it uses as much as digits as its factorization.

135498769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765295 (or 2765288 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 52.

The square root of 135498769 is about 11640.3938507252. The cubic root of 135498769 is about 513.6237727392.

The spelling of 135498769 in words is "one hundred thirty-five million, four hundred ninety-eight thousand, seven hundred sixty-nine".