1201616252 has 24 divisors (see below), whose sum is σ = 2153940096. Its totient is φ = 586233648.

The previous prime is 1201616191. The next prime is 1201616261. The reversal of 1201616252 is 2526161021.

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 7 ways as a sum of consecutive naturals, for example, 197033 + ... + 203039.

It is an arithmetic number, because the mean of its divisors is an integer number (89747504).

Almost surely, 2^1201616252 is an apocalyptic number.

It is an amenable number.

1201616252 is a deficient number, since it is larger than the sum of its proper divisors (952323844).

1201616252 is a wasteful number, since it uses less digits than its factorization.

1201616252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7217 (or 7215 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1201616252 is about 34664.3368896623. The cubic root of 1201616252 is about 1063.1354451594.

Adding to 1201616252 its reverse (2526161021), we get a palindrome (3727777273).

The spelling of 1201616252 in words is "one billion, two hundred one million, six hundred sixteen thousand, two hundred fifty-two".