135151720 has 32 divisors (see below), whose sum is σ = 331737120. Its totient is φ = 49145920.

The previous prime is 135151691. The next prime is 135151721. The reversal of 135151720 is 27151531.

It is not an unprimeable number, because it can be changed into a prime (135151721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153142 + ... + 154021.

It is an arithmetic number, because the mean of its divisors is an integer number (10366785).

Almost surely, 2^135151720 is an apocalyptic number.

135151720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135151720 is an abundant number, since it is smaller than the sum of its proper divisors (196585400).

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

135151720 is a wasteful number, since it uses less digits than its factorization.

135151720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307185 (or 307181 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 135151720 is about 11625.4771945069. The cubic root of 135151720 is about 513.1848880189.

The spelling of 135151720 in words is "one hundred thirty-five million, one hundred fifty-one thousand, seven hundred twenty".