10001897251 has 2 divisors, whose sum is σ = 10001897252. Its totient is φ = 10001897250.

The previous prime is 10001897237. The next prime is 10001897287. The reversal of 10001897251 is 15279810001.

It is a happy number.

10001897251 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10001897251 - 2⁷ = 10001897123 is a prime.

It is a super-2 number, since 2×10001897251² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10001897201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000948625 + 5000948626.

It is an arithmetic number, because the mean of its divisors is an integer number (5000948626).

Almost surely, 2^10001897251 is an apocalyptic number.

10001897251 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001897251 is an equidigital number, since it uses as much as digits as its factorization.

10001897251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 34.

The spelling of 10001897251 in words is "ten billion, one million, eight hundred ninety-seven thousand, two hundred fifty-one".