135398616 has 32 divisors (see below), whose sum is σ = 338826240. Its totient is φ = 45088928.

The previous prime is 135398611. The next prime is 135398621. The reversal of 135398616 is 616893531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (135398611) and next prime (135398621).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135398611) 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, 30745 + ... + 34871.

It is an arithmetic number, because the mean of its divisors is an integer number (10588320).

Almost surely, 2^135398616 is an apocalyptic number.

It is an amenable number.

135398616 is an abundant number, since it is smaller than the sum of its proper divisors (203427624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135398616 is a wasteful number, since it uses less digits than its factorization.

135398616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5503 (or 5499 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 135398616 is about 11636.0910962402. The cubic root of 135398616 is about 513.4971943667.

It can be divided in two parts, 13539 and 8616, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 135398616 in words is "one hundred thirty-five million, three hundred ninety-eight thousand, six hundred sixteen".