102029947 has 2 divisors, whose sum is σ = 102029948. Its totient is φ = 102029946.

The previous prime is 102029933. The next prime is 102029953. The reversal of 102029947 is 749920201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102029947 - 2¹⁵ = 101997179 is a prime.

It is a super-2 number, since 2×102029947² = 20820220169645618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102029647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51014973 + 51014974.

It is an arithmetic number, because the mean of its divisors is an integer number (51014974).

Almost surely, 2^102029947 is an apocalyptic number.

102029947 is a deficient number, since it is larger than the sum of its proper divisors (1).

102029947 is an equidigital number, since it uses as much as digits as its factorization.

102029947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 102029947 is about 10100.9874269796. The cubic root of 102029947 is about 467.2785945797.

The spelling of 102029947 in words is "one hundred two million, twenty-nine thousand, nine hundred forty-seven".