135261012002 has 4 divisors (see below), whose sum is σ = 202891518006. Its totient is φ = 67630506000.

The previous prime is 135261011971. The next prime is 135261012017. The reversal of 135261012002 is 200210162531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 134550309721 + 710702281 = 366811^2 + 26659^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33815252999 + ... + 33815253002.

Almost surely, 2^135261012002 is an apocalyptic number.

135261012002 is a deficient number, since it is larger than the sum of its proper divisors (67630506004).

135261012002 is an equidigital number, since it uses as much as digits as its factorization.

135261012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67630506003.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 135261012002 its reverse (200210162531), we get a palindrome (335471174533).

The spelling of 135261012002 in words is "one hundred thirty-five billion, two hundred sixty-one million, twelve thousand, two".