135420613124 has 24 divisors (see below), whose sum is σ = 241498210968. Its totient is φ = 66421555200.

The previous prime is 135420613099. The next prime is 135420613277. The reversal of 135420613124 is 421316024531.

It can be written as a sum of positive squares in 4 ways, for example, as 74550841600 + 60869771524 = 273040^2 + 246718^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1285124 + ... + 1386500.

It is an arithmetic number, because the mean of its divisors is an integer number (10062425457).

Almost surely, 2^135420613124 is an apocalyptic number.

It is an amenable number.

135420613124 is a deficient number, since it is larger than the sum of its proper divisors (106077597844).

135420613124 is a wasteful number, since it uses less digits than its factorization.

135420613124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107735 (or 107733 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 135420613124 its reverse (421316024531), we get a palindrome (556736637655).

The spelling of 135420613124 in words is "one hundred thirty-five billion, four hundred twenty million, six hundred thirteen thousand, one hundred twenty-four".