1201164055 has 16 divisors (see below), whose sum is σ = 1774027584. Its totient is φ = 760296960.

The previous prime is 1201164031. The next prime is 1201164073. The reversal of 1201164055 is 5504611021.

It is a happy number.

It is not a de Polignac number, because 1201164055 - 2⁵ = 1201164023 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, 1319506 + ... + 1320415.

It is an arithmetic number, because the mean of its divisors is an integer number (110876724).

Almost surely, 2^1201164055 is an apocalyptic number.

1201164055 is a deficient number, since it is larger than the sum of its proper divisors (572863529).

1201164055 is a wasteful number, since it uses less digits than its factorization.

1201164055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639946.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1201164055 is about 34657.8137654411. The cubic root of 1201164055 is about 1063.0020673093.

Adding to 1201164055 its reverse (5504611021), we get a palindrome (6705775076).

The spelling of 1201164055 in words is "one billion, two hundred one million, one hundred sixty-four thousand, fifty-five".