1532245389921 has 27 divisors (see below), whose sum is σ = 2261593159761. Its totient is φ = 999649068264.

The previous prime is 1532245389907. The next prime is 1532245389923. The reversal of 1532245389921 is 1299835422351.

The square root of 1532245389921 is 1237839.

It is a perfect power (a square), and thus also a powerful number.

1532245389921 is a `hidden beast` number, since 1 + 5 + 3 + 22 + 453 + 89 + 92 + 1 = 666.

It is not a de Polignac number, because 1532245389921 - 2¹⁷ = 1532245258849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1532245389923) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 174530910 + ... + 174539688.

Almost surely, 2^{1532245389921} is an apocalyptic number.

1532245389921 is the 1237839-th square number.

1532245389921 is the 618920-th centered octagonal number.

It is an amenable number.

1532245389921 is a deficient number, since it is larger than the sum of its proper divisors (729347769840).

1532245389921 is an frugal number, since it uses more digits than its factorization.

1532245389921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17658 (or 8829 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The spelling of 1532245389921 in words is "one trillion, five hundred thirty-two billion, two hundred forty-five million, three hundred eighty-nine thousand, nine hundred twenty-one".