102441979 has 2 divisors, whose sum is σ = 102441980. Its totient is φ = 102441978.

The previous prime is 102441973. The next prime is 102442013. The reversal of 102441979 is 979144201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102441979 - 2⁵ = 102441947 is a prime.

It is a super-2 number, since 2×102441979² = 20988718122872882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102441973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51220989 + 51220990.

It is an arithmetic number, because the mean of its divisors is an integer number (51220990).

Almost surely, 2^102441979 is an apocalyptic number.

102441979 is a deficient number, since it is larger than the sum of its proper divisors (1).

102441979 is an equidigital number, since it uses as much as digits as its factorization.

102441979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 102441979 is about 10121.3625070936. The cubic root of 102441979 is about 467.9067602864.

The spelling of 102441979 in words is "one hundred two million, four hundred forty-one thousand, nine hundred seventy-nine".