1202052521 has 2 divisors, whose sum is σ = 1202052522. Its totient is φ = 1202052520.

The previous prime is 1202052503. The next prime is 1202052547. The reversal of 1202052521 is 1252502021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1041675625 + 160376896 = 32275^2 + 12664^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202052521 - 2⁶ = 1202052457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202052493 and 1202052502.

It is not a weakly prime, because it can be changed into another prime (1202052121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601026260 + 601026261.

It is an arithmetic number, because the mean of its divisors is an integer number (601026261).

Almost surely, 2^1202052521 is an apocalyptic number.

It is an amenable number.

1202052521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202052521 is an equidigital number, since it uses as much as digits as its factorization.

1202052521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1202052521 is about 34670.6290828419. The cubic root of 1202052521 is about 1063.2640932521.

Adding to 1202052521 its reverse (1252502021), we get a palindrome (2454554542).

The spelling of 1202052521 in words is "one billion, two hundred two million, fifty-two thousand, five hundred twenty-one".