1201265116 has 6 divisors (see below), whose sum is σ = 2102213960. Its totient is φ = 600632556.

The previous prime is 1201265083. The next prime is 1201265119. The reversal of 1201265116 is 6115621021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201265119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150158136 + ... + 150158143.

Almost surely, 2^1201265116 is an apocalyptic number.

It is an amenable number.

1201265116 is a deficient number, since it is larger than the sum of its proper divisors (900948844).

1201265116 is a wasteful number, since it uses less digits than its factorization.

1201265116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300316283 (or 300316281 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1201265116 is about 34659.2717176804. The cubic root of 1201265116 is about 1063.0318786796.

Adding to 1201265116 its reverse (6115621021), we get a palindrome (7316886137).

The spelling of 1201265116 in words is "one billion, two hundred one million, two hundred sixty-five thousand, one hundred sixteen".