135481357 has 8 divisors (see below), whose sum is σ = 149823360. Its totient is φ = 121476960.

The previous prime is 135481351. The next prime is 135481363. The reversal of 135481357 is 753184531.

It is an interprime number because it is at equal distance from previous prime (135481351) and next prime (135481363).

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

It is not a de Polignac number, because 135481357 - 2²⁷ = 1263629 is a prime.

It is a super-2 number, since 2×135481357² = 36710396189122898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135481351) 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, 83557 + ... + 85162.

It is an arithmetic number, because the mean of its divisors is an integer number (18727920).

Almost surely, 2^135481357 is an apocalyptic number.

It is an amenable number.

135481357 is a deficient number, since it is larger than the sum of its proper divisors (14342003).

135481357 is a wasteful number, since it uses less digits than its factorization.

135481357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168803.

The product of its digits is 50400, while the sum is 37.

The square root of 135481357 is about 11639.6459138584. The cubic root of 135481357 is about 513.6017710628.

The spelling of 135481357 in words is "one hundred thirty-five million, four hundred eighty-one thousand, three hundred fifty-seven".