1201170278 has 32 divisors (see below), whose sum is σ = 2251680768. Its totient is φ = 466876800.

The previous prime is 1201170277. The next prime is 1201170283. The reversal of 1201170278 is 8720711021.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201170278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201170277) 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, 57326 + ... + 75422.

It is an arithmetic number, because the mean of its divisors is an integer number (70365024).

Almost surely, 2^1201170278 is an apocalyptic number.

1201170278 is a deficient number, since it is larger than the sum of its proper divisors (1050510490).

1201170278 is a wasteful number, since it uses less digits than its factorization.

1201170278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18548.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 1201170278 is about 34657.9035430593. The cubic root of 1201170278 is about 1063.0039030426.

Adding to 1201170278 its reverse (8720711021), we get a palindrome (9921881299).

The spelling of 1201170278 in words is "one billion, two hundred one million, one hundred seventy thousand, two hundred seventy-eight".