2147499997 has 2 divisors, whose sum is σ = 2147499998. Its totient is φ = 2147499996.

The previous prime is 2147499989. The next prime is 2147500007. The reversal of 2147499997 is 7999947412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1839637881 + 307862116 = 42891^2 + 17546^2 .

It is a cyclic number.

It is not a de Polignac number, because 2147499997 - 2³ = 2147499989 is a prime.

It is a super-2 number, since 2×2147499997² = 9223512474230000018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2147499917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073749998 + 1073749999.

It is an arithmetic number, because the mean of its divisors is an integer number (1073749999).

Almost surely, 2^2147499997 is an apocalyptic number.

It is an amenable number.

2147499997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147499997 is an equidigital number, since it uses as much as digits as its factorization.

2147499997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10287648, while the sum is 61.

The square root of 2147499997 is about 46341.1264105654. The cubic root of 2147499997 is about 1290.1624291194.

The spelling of 2147499997 in words is "two billion, one hundred forty-seven million, four hundred ninety-nine thousand, nine hundred ninety-seven".