135931616 has 12 divisors (see below), whose sum is σ = 267615432. Its totient is φ = 67965792.

The previous prime is 135931603. The next prime is 135931619. The reversal of 135931616 is 616139531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135931619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2123900 + ... + 2123963.

It is an arithmetic number, because the mean of its divisors is an integer number (22301286).

Almost surely, 2^135931616 is an apocalyptic number.

135931616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

135931616 is a deficient number, since it is larger than the sum of its proper divisors (131683816).

135931616 is an equidigital number, since it uses as much as digits as its factorization.

135931616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247873 (or 4247865 counting only the distinct ones).

The product of its digits is 14580, while the sum is 35.

The square root of 135931616 is about 11658.9714812242. The cubic root of 135931616 is about 514.1701102886.

The spelling of 135931616 in words is "one hundred thirty-five million, nine hundred thirty-one thousand, six hundred sixteen".