1201463645 has 16 divisors (see below), whose sum is σ = 1478917440. Its totient is φ = 936507264.

The previous prime is 1201463639. The next prime is 1201463657. The reversal of 1201463645 is 5463641021.

It is a cyclic number.

It is not a de Polignac number, because 1201463645 - 2²² = 1197269341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83417 + ... + 96753.

It is an arithmetic number, because the mean of its divisors is an integer number (92432340).

Almost surely, 2^1201463645 is an apocalyptic number.

It is an amenable number.

1201463645 is a deficient number, since it is larger than the sum of its proper divisors (277453795).

1201463645 is a wasteful number, since it uses less digits than its factorization.

1201463645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13804.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1201463645 is about 34662.1356093360. The cubic root of 1201463645 is about 1063.0904366748.

The spelling of 1201463645 in words is "one billion, two hundred one million, four hundred sixty-three thousand, six hundred forty-five".