102141997 has 2 divisors, whose sum is σ = 102141998. Its totient is φ = 102141996.

The previous prime is 102141989. The next prime is 102142003. The reversal of 102141997 is 799141201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56160036 + 45981961 = 7494^2 + 6781^2 .

It is a cyclic number.

It is not a de Polignac number, because 102141997 - 2³ = 102141989 is a prime.

It is a super-2 number, since 2×102141997² = 20865975102296018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102141917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51070998 + 51070999.

It is an arithmetic number, because the mean of its divisors is an integer number (51070999).

Almost surely, 2^102141997 is an apocalyptic number.

It is an amenable number.

102141997 is a deficient number, since it is larger than the sum of its proper divisors (1).

102141997 is an equidigital number, since it uses as much as digits as its factorization.

102141997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 102141997 is about 10106.5323924678. The cubic root of 102141997 is about 467.4495882042.

The spelling of 102141997 in words is "one hundred two million, one hundred forty-one thousand, nine hundred ninety-seven".