2497121197 has 2 divisors, whose sum is σ = 2497121198. Its totient is φ = 2497121196.

The previous prime is 2497121141. The next prime is 2497121213. The reversal of 2497121197 is 7911217942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2340721161 + 156400036 = 48381^2 + 12506^2 .

It is a cyclic number.

It is not a de Polignac number, because 2497121197 - 2¹⁹ = 2496596909 is a prime.

It is a super-2 number, since 2×2497121197² = 12471228545013425618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2497124197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248560598 + 1248560599.

It is an arithmetic number, because the mean of its divisors is an integer number (1248560599).

Almost surely, 2^2497121197 is an apocalyptic number.

It is an amenable number.

2497121197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2497121197 is an equidigital number, since it uses as much as digits as its factorization.

2497121197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 43.

The square root of 2497121197 is about 49971.2036777182. The cubic root of 2497121197 is about 1356.6876566353.

The spelling of 2497121197 in words is "two billion, four hundred ninety-seven million, one hundred twenty-one thousand, one hundred ninety-seven".