1000202501 has 2 divisors, whose sum is σ = 1000202502. Its totient is φ = 1000202500.

The previous prime is 1000202477. The next prime is 1000202519. The reversal of 1000202501 is 1052020001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 582981025 + 417221476 = 24145^2 + 20426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000202501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000202101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500101250 + 500101251.

It is an arithmetic number, because the mean of its divisors is an integer number (500101251).

Almost surely, 2^1000202501 is an apocalyptic number.

It is an amenable number.

1000202501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000202501 is an equidigital number, since it uses as much as digits as its factorization.

1000202501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1000202501 is about 31625.9782615495. The cubic root of 1000202501 is about 1000.0674957776.

Adding to 1000202501 its reverse (1052020001), we get a palindrome (2052222502).

The spelling of 1000202501 in words is "one billion, two hundred two thousand, five hundred one".