135172616 has 8 divisors (see below), whose sum is σ = 253448670. Its totient is φ = 67586304.

The previous prime is 135172603. The next prime is 135172619. The reversal of 135172616 is 616271531.

It can be written as a sum of positive squares in only one way, i.e., 112572100 + 22600516 = 10610^2 + 4754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×135172616² = 36543272232566912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135172619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8448281 + ... + 8448296.

Almost surely, 2^135172616 is an apocalyptic number.

It is an amenable number.

135172616 is a deficient number, since it is larger than the sum of its proper divisors (118276054).

135172616 is a wasteful number, since it uses less digits than its factorization.

135172616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16896583 (or 16896579 counting only the distinct ones).

The product of its digits is 7560, while the sum is 32.

The square root of 135172616 is about 11626.3758755684. The cubic root of 135172616 is about 513.2113347382.

The spelling of 135172616 in words is "one hundred thirty-five million, one hundred seventy-two thousand, six hundred sixteen".