1201642485 has 16 divisors (see below), whose sum is σ = 1923070464. Its totient is φ = 640728512.

The previous prime is 1201642483. The next prime is 1201642493. The reversal of 1201642485 is 5842461021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1201642485 - 2¹ = 1201642483 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201642483) 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, 99484 + ... + 110906.

It is an arithmetic number, because the mean of its divisors is an integer number (120191904).

Almost surely, 2^1201642485 is an apocalyptic number.

1201642485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1201642485 is a deficient number, since it is larger than the sum of its proper divisors (721427979).

1201642485 is a wasteful number, since it uses less digits than its factorization.

1201642485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18444.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 1201642485 is about 34664.7152736035. The cubic root of 1201642485 is about 1063.1431816918.

The spelling of 1201642485 in words is "one billion, two hundred one million, six hundred forty-two thousand, four hundred eighty-five".