136871512 has 16 divisors (see below), whose sum is σ = 257613840. Its totient is φ = 68174496.

The previous prime is 136871509. The next prime is 136871513. The reversal of 136871512 is 215178631.

It is a happy number.

It is a super-3 number, since 3×136871512³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136871513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30423 + ... + 34630.

It is an arithmetic number, because the mean of its divisors is an integer number (16100865).

Almost surely, 2^136871512 is an apocalyptic number.

It is an amenable number.

136871512 is a deficient number, since it is larger than the sum of its proper divisors (120742328).

136871512 is a wasteful number, since it uses less digits than its factorization.

136871512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65322 (or 65318 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 136871512 is about 11699.2098878514. The cubic root of 136871512 is about 515.3524617739.

The spelling of 136871512 in words is "one hundred thirty-six million, eight hundred seventy-one thousand, five hundred twelve".