1201945608 has 32 divisors (see below), whose sum is σ = 3338738400. Its totient is φ = 400648464.

The previous prime is 1201945603. The next prime is 1201945621. The reversal of 1201945608 is 8065491021.

1201945608 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 9 + 45 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1201945603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2782066 + ... + 2782497.

It is an arithmetic number, because the mean of its divisors is an integer number (104335575).

Almost surely, 2^1201945608 is an apocalyptic number.

1201945608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1201945608 is an abundant number, since it is smaller than the sum of its proper divisors (2136792792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201945608 is a wasteful number, since it uses less digits than its factorization.

1201945608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5564578 (or 5564568 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1201945608 is about 34669.0872103665. The cubic root of 1201945608 is about 1063.2325693593.

The spelling of 1201945608 in words is "one billion, two hundred one million, nine hundred forty-five thousand, six hundred eight".