135801512 has 128 divisors (see below), whose sum is σ = 343526400. Its totient is φ = 48729600.

The previous prime is 135801503. The next prime is 135801517. The reversal of 135801512 is 215108531.

It is a happy number.

It is a super-2 number, since 2×135801512² = 36884101322972288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135801517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 479723 + ... + 480005.

It is an arithmetic number, because the mean of its divisors is an integer number (2683800).

Almost surely, 2^135801512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135801512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171763200).

135801512 is an abundant number, since it is smaller than the sum of its proper divisors (207724888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135801512 is a wasteful number, since it uses less digits than its factorization.

135801512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 135801512 is about 11653.3905795695. The cubic root of 135801512 is about 514.0060156654.

The spelling of 135801512 in words is "one hundred thirty-five million, eight hundred one thousand, five hundred twelve".