2497121213 has 2 divisors, whose sum is σ = 2497121214. Its totient is φ = 2497121212.

The previous prime is 2497121197. The next prime is 2497121243. The reversal of 2497121213 is 3121217942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2391894649 + 105226564 = 48907^2 + 10258^2 .

It is a cyclic number.

It is not a de Polignac number, because 2497121213 - 2⁴ = 2497121197 is a prime.

It is a super-2 number, since 2×2497121213² = 12471228704829182738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2497121213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2497121243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248560606 + 1248560607.

It is an arithmetic number, because the mean of its divisors is an integer number (1248560607).

Almost surely, 2^2497121213 is an apocalyptic number.

It is an amenable number.

2497121213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2497121213 is an equidigital number, since it uses as much as digits as its factorization.

2497121213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 2497121213 is about 49971.2038378104. The cubic root of 2497121213 is about 1356.6876595329.

The spelling of 2497121213 in words is "two billion, four hundred ninety-seven million, one hundred twenty-one thousand, two hundred thirteen".