1201571532 has 288 divisors, whose sum is σ = 3792588800. Its totient is φ = 320060160.

The previous prime is 1201571531. The next prime is 1201571599. The reversal of 1201571532 is 2351751021.

1201571532 is a `hidden beast` number, since 120 + 1 + 5 + 7 + 1 + 532 = 666.

1201571532 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1201571496 and 1201571505.

It is not an unprimeable number, because it can be changed into a prime (1201571531) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16459848 + ... + 16459920.

Almost surely, 2^1201571532 is an apocalyptic number.

1201571532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201571532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1896294400).

1201571532 is an abundant number, since it is smaller than the sum of its proper divisors (2591017268).

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

1201571532 is a wasteful number, since it uses less digits than its factorization.

1201571532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 1201571532 is about 34663.6918403104. The cubic root of 1201571532 is about 1063.1222562547.

The spelling of 1201571532 in words is "one billion, two hundred one million, five hundred seventy-one thousand, five hundred thirty-two".