135857012 has 6 divisors (see below), whose sum is σ = 237749778. Its totient is φ = 67928504.

The previous prime is 135856997. The next prime is 135857023. The reversal of 135857012 is 210758531.

It can be written as a sum of positive squares in only one way, i.e., 134699236 + 1157776 = 11606^2 + 1076^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 135857012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16982123 + ... + 16982130.

It is an arithmetic number, because the mean of its divisors is an integer number (39624963).

Almost surely, 2^135857012 is an apocalyptic number.

It is an amenable number.

135857012 is a deficient number, since it is larger than the sum of its proper divisors (101892766).

135857012 is a wasteful number, since it uses less digits than its factorization.

135857012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33964257 (or 33964255 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 135857012 is about 11655.7716175292. The cubic root of 135857012 is about 514.0760282598.

The spelling of 135857012 in words is "one hundred thirty-five million, eight hundred fifty-seven thousand, twelve".