135521170 has 8 divisors (see below), whose sum is σ = 243938124. Its totient is φ = 54208464.

The previous prime is 135521149. The next prime is 135521201. The reversal of 135521170 is 71125531.

It can be written as a sum of positive squares in 2 ways, for example, as 135326689 + 194481 = 11633^2 + 441^2 .

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, 6776049 + ... + 6776068.

Almost surely, 2^135521170 is an apocalyptic number.

135521170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135521170 is a deficient number, since it is larger than the sum of its proper divisors (108416954).

135521170 is a wasteful number, since it uses less digits than its factorization.

135521170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13552124.

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

The square root of 135521170 is about 11641.3560206704. The cubic root of 135521170 is about 513.6520757077.

The spelling of 135521170 in words is "one hundred thirty-five million, five hundred twenty-one thousand, one hundred seventy".