135420361625 has 32 divisors (see below), whose sum is σ = 179362460160. Its totient is φ = 101726304000.

The previous prime is 135420361621. The next prime is 135420361667. The reversal of 135420361625 is 526163024531.

It is not a de Polignac number, because 135420361625 - 2² = 135420361621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135420361621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 841946 + ... + 989804.

It is an arithmetic number, because the mean of its divisors is an integer number (5605076880).

Almost surely, 2^135420361625 is an apocalyptic number.

It is an amenable number.

135420361625 is a deficient number, since it is larger than the sum of its proper divisors (43942098535).

135420361625 is a wasteful number, since it uses less digits than its factorization.

135420361625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148322 (or 148312 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 135420361625 in words is "one hundred thirty-five billion, four hundred twenty million, three hundred sixty-one thousand, six hundred twenty-five".