135237512493 has 16 divisors (see below), whose sum is σ = 206814835200. Its totient is φ = 87250007520.

The previous prime is 135237512489. The next prime is 135237512519. The reversal of 135237512493 is 394215732531.

135237512493 is a `hidden beast` number, since 1 + 3 + 523 + 75 + 12 + 49 + 3 = 666.

It is not a de Polignac number, because 135237512493 - 2² = 135237512489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135237512453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80786208 + ... + 80787881.

It is an arithmetic number, because the mean of its divisors is an integer number (12925927200).

Almost surely, 2^135237512493 is an apocalyptic number.

It is an amenable number.

135237512493 is a deficient number, since it is larger than the sum of its proper divisors (71577322707).

135237512493 is a wasteful number, since it uses less digits than its factorization.

135237512493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161574129 (or 161574123 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The spelling of 135237512493 in words is "one hundred thirty-five billion, two hundred thirty-seven million, five hundred twelve thousand, four hundred ninety-three".