1201006135 has 16 divisors (see below), whose sum is σ = 1653668352. Its totient is φ = 820260000.

The previous prime is 1201006117. The next prime is 1201006141. The reversal of 1201006135 is 5316001021.

It is not a de Polignac number, because 1201006135 - 2¹⁹ = 1200481847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59571 + ... + 77140.

It is an arithmetic number, because the mean of its divisors is an integer number (103354272).

Almost surely, 2^1201006135 is an apocalyptic number.

1201006135 is a deficient number, since it is larger than the sum of its proper divisors (452662217).

1201006135 is a wasteful number, since it uses less digits than its factorization.

1201006135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136974.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1201006135 is about 34655.5354164382. The cubic root of 1201006135 is about 1062.9554801000.

Adding to 1201006135 its reverse (5316001021), we get a palindrome (6517007156).

The spelling of 1201006135 in words is "one billion, two hundred one million, six thousand, one hundred thirty-five".