102997481 has 2 divisors, whose sum is σ = 102997482. Its totient is φ = 102997480.

The previous prime is 102997429. The next prime is 102997483. The reversal of 102997481 is 184799201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92467456 + 10530025 = 9616^2 + 3245^2 .

It is a cyclic number.

It is not a de Polignac number, because 102997481 - 2¹⁰ = 102996457 is a prime.

It is a super-2 number, since 2×102997481² = 21216962184690722, which contains 22 as substring.

Together with 102997483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102997483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51498740 + 51498741.

It is an arithmetic number, because the mean of its divisors is an integer number (51498741).

Almost surely, 2^102997481 is an apocalyptic number.

It is an amenable number.

102997481 is a deficient number, since it is larger than the sum of its proper divisors (1).

102997481 is an equidigital number, since it uses as much as digits as its factorization.

102997481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 102997481 is about 10148.7674621109. The cubic root of 102997481 is about 468.7509933964.

The spelling of 102997481 in words is "one hundred two million, nine hundred ninety-seven thousand, four hundred eighty-one".