135861010 has 8 divisors (see below), whose sum is σ = 244549836. Its totient is φ = 54344400.

The previous prime is 135860981. The next prime is 135861071. The reversal of 135861010 is 10168531.

It can be written as a sum of positive squares in 2 ways, for example, as 115584001 + 20277009 = 10751^2 + 4503^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6793041 + ... + 6793060.

Almost surely, 2^135861010 is an apocalyptic number.

135861010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135861010 is a deficient number, since it is larger than the sum of its proper divisors (108688826).

135861010 is a wasteful number, since it uses less digits than its factorization.

135861010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13586108.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 135861010 is about 11655.9431192847. The cubic root of 135861010 is about 514.0810709532.

The spelling of 135861010 in words is "one hundred thirty-five million, eight hundred sixty-one thousand, ten".