135517810 has 16 divisors (see below), whose sum is σ = 244661976. Its totient is φ = 54044928.

The previous prime is 135517807. The next prime is 135517813. The reversal of 135517810 is 18715531.

It is an interprime number because it is at equal distance from previous prime (135517807) and next prime (135517813).

It can be written as a sum of positive squares in 4 ways, for example, as 90801841 + 44715969 = 9529^2 + 6687^2 .

It is a super-2 number, since 2×135517810² = 36730153654392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135517813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16737 + ... + 23476.

Almost surely, 2^135517810 is an apocalyptic number.

135517810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135517810 is a deficient number, since it is larger than the sum of its proper divisors (109144166).

135517810 is a wasteful number, since it uses less digits than its factorization.

135517810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40557.

The product of its (nonzero) digits is 4200, while the sum is 31.

The square root of 135517810 is about 11641.2117066910. The cubic root of 135517810 is about 513.6478306508.

The spelling of 135517810 in words is "one hundred thirty-five million, five hundred seventeen thousand, eight hundred ten".