1002252541 has 2 divisors, whose sum is σ = 1002252542. Its totient is φ = 1002252540.

The previous prime is 1002252533. The next prime is 1002252569. The reversal of 1002252541 is 1452522001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001469316 + 783225 = 31646^2 + 885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002252541 - 2³ = 1002252533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002252571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501126270 + 501126271.

It is an arithmetic number, because the mean of its divisors is an integer number (501126271).

Almost surely, 2^1002252541 is an apocalyptic number.

It is an amenable number.

1002252541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002252541 is an equidigital number, since it uses as much as digits as its factorization.

1002252541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1002252541 is about 31658.3723681430. The cubic root of 1002252541 is about 1000.7502839332.

Adding to 1002252541 its reverse (1452522001), we get a palindrome (2454774542).

The spelling of 1002252541 in words is "one billion, two million, two hundred fifty-two thousand, five hundred forty-one".