1201533712 has 20 divisors (see below), whose sum is σ = 2403068416. Its totient is φ = 581387040.

The previous prime is 1201533689. The next prime is 1201533719. The reversal of 1201533712 is 2173351021.

It is a happy number.

1201533712 is an admirable number.

It is a super-2 number, since 2×1201533712² = 2887366522144997888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201533719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1210728 + ... + 1211719.

Almost surely, 2^1201533712 is an apocalyptic number.

It is an amenable number.

1201533712 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1201533712 is a wasteful number, since it uses less digits than its factorization.

1201533712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422486 (or 2422480 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 1201533712 is about 34663.1463084354. The cubic root of 1201533712 is about 1063.1111020552. Note that the first 4 decimals are identical.

Adding to 1201533712 its reverse (2173351021), we get a palindrome (3374884733).

The spelling of 1201533712 in words is "one billion, two hundred one million, five hundred thirty-three thousand, seven hundred twelve".