4197157801 has 2 divisors, whose sum is σ = 4197157802. Its totient is φ = 4197157800.

The previous prime is 4197157799. The next prime is 4197157813. The reversal of 4197157801 is 1087517914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3887397801 + 309760000 = 62349^2 + 17600^2 .

It is a cyclic number.

It is not a de Polignac number, because 4197157801 - 2¹ = 4197157799 is a prime.

It is a super-2 number, since 2×4197157801² = 35232267212990311202, which contains 22 as substring.

Together with 4197157799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4197157841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2098578900 + 2098578901.

It is an arithmetic number, because the mean of its divisors is an integer number (2098578901).

Almost surely, 2^4197157801 is an apocalyptic number.

It is an amenable number.

4197157801 is a deficient number, since it is larger than the sum of its proper divisors (1).

4197157801 is an equidigital number, since it uses as much as digits as its factorization.

4197157801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 43.

The square root of 4197157801 is about 64785.4752317215. The cubic root of 4197157801 is about 1613.0646206220.

The spelling of 4197157801 in words is "four billion, one hundred ninety-seven million, one hundred fifty-seven thousand, eight hundred one".