1530640135135 has 16 divisors (see below), whose sum is σ = 1903752123840. Its totient is φ = 1180018228480.

The previous prime is 1530640135133. The next prime is 1530640135169. The reversal of 1530640135135 is 5315310460351.

It is not a de Polignac number, because 1530640135135 - 2¹ = 1530640135133 is a prime.

It is a super-2 number, since 2×1530640135135² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1530640135094 and 1530640135103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530640135133) 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, 10055107 + ... + 10206196.

It is an arithmetic number, because the mean of its divisors is an integer number (118984507740).

Almost surely, 2^{1530640135135} is an apocalyptic number.

1530640135135 is a deficient number, since it is larger than the sum of its proper divisors (373111988705).

1530640135135 is a wasteful number, since it uses less digits than its factorization.

1530640135135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20261858.

The product of its (nonzero) digits is 81000, while the sum is 37.

Adding to 1530640135135 its reverse (5315310460351), we get a palindrome (6845950595486).

The spelling of 1530640135135 in words is "one trillion, five hundred thirty billion, six hundred forty million, one hundred thirty-five thousand, one hundred thirty-five".