1201298895 has 24 divisors (see below), whose sum is σ = 2083395600. Its totient is φ = 640340736.

The previous prime is 1201298851. The next prime is 1201298911. The reversal of 1201298895 is 5988921021.

It is not a de Polignac number, because 1201298895 - 2⁶ = 1201298831 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1201298895.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 89536 + ... + 102074.

It is an arithmetic number, because the mean of its divisors is an integer number (86808150).

Almost surely, 2^1201298895 is an apocalyptic number.

1201298895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1201298895 is a deficient number, since it is larger than the sum of its proper divisors (882096705).

1201298895 is a wasteful number, since it uses less digits than its factorization.

1201298895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14679 (or 14676 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 1201298895 is about 34659.7590153192. The cubic root of 1201298895 is about 1063.0418425687.

The spelling of 1201298895 in words is "one billion, two hundred one million, two hundred ninety-eight thousand, eight hundred ninety-five".