2354121997 has 2 divisors, whose sum is σ = 2354121998. Its totient is φ = 2354121996.

The previous prime is 2354121961. The next prime is 2354122049. The reversal of 2354121997 is 7991214532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2141283076 + 212838921 = 46274^2 + 14589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2354121997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2354121397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1177060998 + 1177060999.

It is an arithmetic number, because the mean of its divisors is an integer number (1177060999).

Almost surely, 2^2354121997 is an apocalyptic number.

It is an amenable number.

2354121997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2354121997 is an equidigital number, since it uses as much as digits as its factorization.

2354121997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 2354121997 is about 48519.2950999909. The cubic root of 2354121997 is about 1330.2797755033.

The spelling of 2354121997 in words is "two billion, three hundred fifty-four million, one hundred twenty-one thousand, nine hundred ninety-seven".