135551730 has 16 divisors (see below), whose sum is σ = 325324224. Its totient is φ = 36147120.

The previous prime is 135551701. The next prime is 135551737. The reversal of 135551730 is 37155531.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4518391 = 135551730 / (1 + 3 + 5 + 5 + 5 + 1 + 7 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (135551737) 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, 2259166 + ... + 2259225.

It is an arithmetic number, because the mean of its divisors is an integer number (20332764).

Almost surely, 2^135551730 is an apocalyptic number.

135551730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135551730 is an abundant number, since it is smaller than the sum of its proper divisors (189772494).

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

135551730 is a wasteful number, since it uses less digits than its factorization.

135551730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518401.

The product of its (nonzero) digits is 7875, while the sum is 30.

The square root of 135551730 is about 11642.6685085508. The cubic root of 135551730 is about 513.6906822901.

The spelling of 135551730 in words is "one hundred thirty-five million, five hundred fifty-one thousand, seven hundred thirty".