102474947 has 2 divisors, whose sum is σ = 102474948. Its totient is φ = 102474946.

The previous prime is 102474907. The next prime is 102474973. The reversal of 102474947 is 749474201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102474947 - 2²⁰ = 101426371 is a prime.

It is a super-2 number, since 2×102474947² = 21002229525305618, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102474947.

It is not a weakly prime, because it can be changed into another prime (102474907) 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, 51237473 + 51237474.

It is an arithmetic number, because the mean of its divisors is an integer number (51237474).

Almost surely, 2^102474947 is an apocalyptic number.

102474947 is a deficient number, since it is larger than the sum of its proper divisors (1).

102474947 is an equidigital number, since it uses as much as digits as its factorization.

102474947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 102474947 is about 10122.9910105660. The cubic root of 102474947 is about 467.9569490070.

The spelling of 102474947 in words is "one hundred two million, four hundred seventy-four thousand, nine hundred forty-seven".